Cancer of the oral cavity accounts for approximately 3% of all malignancies diagnosed annually in 270,000 patients world-wide. Oral cancer is the 12th most common cancer in women and the 6th in men. Many oral squamous cell carcinomas develop from potentially malignant disorders (PMDs). Lack of awareness about the signs and symptoms of oral PMDs in the general population and even healthcare providers is believed to be responsible for the diagnostic delay of these entities.
ORN is an inflammatory condition of bone that occurs after the bone has been exposed to therapeutic doses of radiation usually given for a malignancies.
ORN is an inflammatory condition of bone that occurs after the bone has been exposed to therapeutic doses of radiation usually given for a malignancies.
Includes most common tumors of oral cavity including scc,bcc, melanoma, ameloblastoma, odontoma, fibromas, pindborg tumors etc.
Presented by Dr. Binaya Subedi
Fibro-osseous lesions of the jaws
Fibrous dysplasia
Cemento-osseous dysplasia
Focal cemento-osseous dysplasia
Periapical cemento-osseous dysplasia
Florid cemento-osseous dysplasia
Ossifying fibroma
Juvenile aggressive ossifying fibroma
Cherubism
Fibro-osseous lesions (FOL) are characterized by replacement of normal bone architecture by collagen fibers and fibroblasts containing calcified tissue.
They include a wide variety of lesions of developmental, dysplastic and neoplastic origins with clinical and radiographic presentation and behavior.
Because of the histological similarities between diverse diseases, proper diagnosis requires correlation of history, clinical and radiographic findings.Fibrous Dysplasia
2. Reactive (dysplastic lesions arising in the tooth-bearing area (presumably of periodontal origin).
a. Periapical cemento-osseous dysplasia
b. Focal cemento-osseous dysplasia
c. Florid cemento-osseous dysplasia
3. Fibro-osseous neoplasms (widely designated as cementifying fibroma, ossifying fibroma or cemento-ossifying fibroma.Bone dysplasias
a. Fibrous dyspla i. Monostoticii. Polyostotic
iii. Polyostotic with endocrinopathy (McCune-Albright)
iv Osteofibrous dysplasia
b. Osteitis deformansc. Pagetoid heritable bone dysplasias of childhood
d. Segmental odontomaxillary dysplasia
2. Cemento-osseous dysplasias
a. Focal cemento-osseous dysplasia b. Florid cemento-osseous dysplasia
3.Inflammatory/reactive processes
a. Focal sclerosing osteomyelitisb. Diffuse sclerosing osteomyelitis
c. Proliferative periostitis
4. Metabolic Disease: hyperparathyroidism
5. Neoplastic lesions (Ossifying fibromas)
a. Ossifying fibromab. Hyperparathyroidism jaw lesion syndrome
c. Juvenile ossifying fibroma i. Trabecular typeii. Psammomatoid type
d. Gigantiform cementomas
The presentation explain white lesions in oral cavity and the classification the demonstrate the etiology, histopathology, diagnosis and treatment for each one.
Includes most common tumors of oral cavity including scc,bcc, melanoma, ameloblastoma, odontoma, fibromas, pindborg tumors etc.
Presented by Dr. Binaya Subedi
Fibro-osseous lesions of the jaws
Fibrous dysplasia
Cemento-osseous dysplasia
Focal cemento-osseous dysplasia
Periapical cemento-osseous dysplasia
Florid cemento-osseous dysplasia
Ossifying fibroma
Juvenile aggressive ossifying fibroma
Cherubism
Fibro-osseous lesions (FOL) are characterized by replacement of normal bone architecture by collagen fibers and fibroblasts containing calcified tissue.
They include a wide variety of lesions of developmental, dysplastic and neoplastic origins with clinical and radiographic presentation and behavior.
Because of the histological similarities between diverse diseases, proper diagnosis requires correlation of history, clinical and radiographic findings.Fibrous Dysplasia
2. Reactive (dysplastic lesions arising in the tooth-bearing area (presumably of periodontal origin).
a. Periapical cemento-osseous dysplasia
b. Focal cemento-osseous dysplasia
c. Florid cemento-osseous dysplasia
3. Fibro-osseous neoplasms (widely designated as cementifying fibroma, ossifying fibroma or cemento-ossifying fibroma.Bone dysplasias
a. Fibrous dyspla i. Monostoticii. Polyostotic
iii. Polyostotic with endocrinopathy (McCune-Albright)
iv Osteofibrous dysplasia
b. Osteitis deformansc. Pagetoid heritable bone dysplasias of childhood
d. Segmental odontomaxillary dysplasia
2. Cemento-osseous dysplasias
a. Focal cemento-osseous dysplasia b. Florid cemento-osseous dysplasia
3.Inflammatory/reactive processes
a. Focal sclerosing osteomyelitisb. Diffuse sclerosing osteomyelitis
c. Proliferative periostitis
4. Metabolic Disease: hyperparathyroidism
5. Neoplastic lesions (Ossifying fibromas)
a. Ossifying fibromab. Hyperparathyroidism jaw lesion syndrome
c. Juvenile ossifying fibroma i. Trabecular typeii. Psammomatoid type
d. Gigantiform cementomas
The presentation explain white lesions in oral cavity and the classification the demonstrate the etiology, histopathology, diagnosis and treatment for each one.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
Leukoplakia can be defined as a “white patch” or “plaque” in the oral cavity, which cannot be scrapped off and which cannot be characterized clinically or pathologically as any other disease.
This excludes lesions such as lichen planus, candidiasis, leukoedema, white spongy nevus, and obvious frictional keratosis.
The term leukoplakia should be used to recognise white plaques of questionable risk having excluded (other) known diseases or disorders that carry no risk for cancer-WHO 2005.
Differential diagnosis of white lesions in the form of a combination of various journals.
For easy diagnosis of various white lesions which we usually encounter in our clinics. A diagnosis tree along with various white lesions along with the lesions to which they resemble.
By:
Dr. Sunbul Tabrez
International Journal of Pharmaceutical Science Invention (IJPSI) is an international journal intended for professionals and researchers in all fields of Pahrmaceutical Science. IJPSI publishes research articles and reviews within the whole field Pharmacy and Pharmaceutical Science, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
2. INTRODUCTION
Oral cancer constitutes an important entity in the field of head and
neck oncology
The global incidence of oral cancer is 644600 cases per year.
The incidence of oral cancer In India is 40 % among all cancer and
about 1,00,000 patients suffer from oral cancer in any year.
Oral cancer is responsible for 7% of all cancer deaths in males
while it is 3 % in females.
3. Various potentially malignant lesions, particularly red
lesions(erythroplasias) and some white lesions (leukoplakias) have
a potential for malignant change.
In that, risk of erythroplasias is exceedingly high.
The accuracy of predictions about potentially malignant lesions and
conditions is low but the process of identifying “at risk” lesions is
fundamental for diagnosis and treatment planning.
Mortazavi H, Baharvand M, Mehdipour M. Oral potentially malignant disorders: an
overview of more than 20 entities. J Dent Res Dent Clin Dent Prospects. 2014;8(1):6–
14.
4. DEFINITION
A potentially malignant lesion is “A morphologically altered tissue in
which oral cancer is more likely to occur than in its apparently
normal counterpart.
-WHO 1978
A potentially malignant condition is‘a generalized state associated
with a significantly increased risk of cancer’
- WHO 1978
7. Potentially malignant disorders
“It is a group of disorders of varying etiologies, usually tobacco
characterized by mutagen associated, spontaneous or hereditary
alterations or mutations in the genetic material of oral epithelial
cells with or without clinical and histo-morphological alterations that
may lead to oral squamous cell carcinoma transformation”.
Warnakulasuriya S. Clinical features and presentation of oral potentially malignant
disorders. Oral Surg Oral Med Oral Pathol Oral Radiol. 2018;125:582‐590
8. LEUKOPLAKIA
Oral leukoplakia, as defined by the WHO, as“ A predominantly
white lesion of the oral mucosa that cannot be characterized as any
other definable lesion.”
Parlatescu I, Gheorghe C, Coculescu E, Tovaru S. Oral leukoplakia - an
update. Maedica (Buchar). 2014;9(1):88–93.
12. CLINICAL FEATURES
Male predilection
Mostly occurs in 4th to 7th decade of life.
Oral leukoplakias are found on the Upper and lower
alveolus(36%) buccal mucosa(22 %) , lips (11%), palate (11%),
floor of mouth (9%), gingiva(8%), Tongue(7%), retromolar
trigone(6%)
Warnakulasuriya S. Clinical features and presentation of oral potentially malignant
disorders. Oral Surg Oral Med Oral Pathol Oral Radiol. 2018;125:582‐590
14. HOMOGENOUS
Uniform white patch lesion with smooth or corrugated surface
sometimes, slightly raised mucosa.
Usually plaque like, some are smooth, may be wrinkled or criss-
crossed by small crack or fissure.
Malignant transformation – 1 to 7%.
Parlatescu I, Gheorghe C, Coculescu E, Tovaru S. Oral leukoplakia - an
update. Maedica (Buchar). 2014;9(1):88–93.
15. NON HOMOGENOUS
Ulcerative or Erosive
Proliferative Verrucous Leukoplakia
Speckled Leukoplakia
Parlatescu I, Gheorghe C, Coculescu E, Tovaru S. Oral leukoplakia - an
update. Maedica (Buchar). 2014;9(1):88–93.
16. Ulcerative leukoplakia
It is characterized by red area, giving the appearance of ulceration.
White patches are present at the periphery of the lesion
17. Proliferative Verrucous Leukoplakia
Verrucous leukoplakia can become more exophytic with
development of multiple keratotic plaques with roughened surface
projection.
It has got strong female predilection
It can spread and involve adjacent mucosa.
As the disease progress it transforms into a lesion that is clinically
and microscopically identical to verrucous carcinoma or squamous
cell carcinoma.
18. It is a mixed red white lesion in which small keratotic nodules are
scattered
over an atrophic patch of oral mucosa.
Nodules may be pinhead sized or even larger
It has got a high malignant potential.
19. Classification by Van der Waal et al
Lx — Size not specified
L1 — Size of leukoplakia <2 cm
L2 — Size of leukoplakia 2–4 cm
L3 — Size of leukoplakia >4 cm
P — Pathology
Px — Dysplasia not specified in the pathology report.
P0 — No epithelial dysplasia
P1 — Mild to Moderate epithelial dysplasia
P2- Severe Epithelial dysplasia
20. Staging of Leukoplakia
Stage I — L1 P0
State II — L2 P0
Stage III — L3 P0 or L1/ L2 P1
Stage IV — L3 P1 or any LP2
21. HAIRY LEUKOPLAKIA
Hairy leukoplakia is a condition that is characterised by irregular
white patches on the side of the tongue and occasionally elsewhere
on the tongue or in the mouth.
It is a form of leukoplakia often arises in response to chronic
irritation.
Hairy leukoplakia is associated with Epstein-Barr virus (EBV) and
occurs primarily in HIV-positive individuals.
22. Clinical features
Male predilection
Most common in 40 – 60 years of age
Recent studies show higher incidences in young adults
Bilaterally on the lateral borders of the tongue as painless, faint
white vertical streaks or thickened and furrowed areas with a
shaggy keratotic surface with vertical striations imparting a
corrugated appearance.
24. Histopathological examination:- It shows hyperkeratosis of surface
epithelium with acanthosis of the spinous layer. The Cells show
features of dysplasia i.e
1. Loss of polarity of the basal cells
2. Presence of more than one layer of cells having a basaloid
appearance
3. Increased nuclear cytoplasmic ratio
4. Drop-shaped rete processes
25. 5. Irregular epithelial stratification
6. Increased number of mitotic figures
7. Presence of mitotic figures in the superfi cial half of the
epithelium
8. Cellular pleomorphism
9. Nuclear hyperchromatism
10. Enlarged nucleoli
11. Reduction of cellular cohesion
12. Keratinization of single cells or cell groups in the prickle layer
27. MANAGEMENT
Vit A -75000- 300000 IU for 3 months.
13-cis-retinoic acid 1.5 to 2 mg/kg body weight for 3 months.
Topical Bleomycin – 0.5-1% solution for 2wks
5-Fluorouracil 50-150 mg/kg Qid
28. Surgical Management:-
Scalpel excision / Stripping
Electrocautery
Cryotherapy with liquid nitrogen
Laser therapy which includes CO2 and Erbium laser
29. ERYTHROPLAKIA
Also known as ERYTHROPLASIA OF QUEYART
A fiery red patch that cannot be characterized clinically or
pathologically as any other definable disease.
- WHO
Etiology:-
Unknown
Contributing factors include tobacco use, alcohol
consumption
30. CLINICAL FEATURES
Incidence :- It is more common in males and occurs more
frequently in the 6th and 7th decade of life.
Red, often velvety, well-defined patches.
Most commonly present on floor of mouth, retromolar area, lateral
tongue.
Usually asymptomatic
May be smooth to nodular
31. It appears as a bright red, soft velvety lesion with straight or
scalloped well demarcated margins, often quite extensive in size,
commonly found on the buccal mucosa and sometimes on the soft
palate, more rarely on the tongue and floor of the mouth.
Sometimes it appears which is soft, red lesions that are slightly
elevated with an irregular outline and a granular or fine nodular
surface speckled with tiny white plaques
34. MANAGEMENT
Beta Carotene 20 to 90 mg/day for a period of 3-12 months.
Vitamin E 800 IU/day from 6 to 9 months
Topical bleomycin in dosages of 0.5%/day for 12 to 15 days
Photodynamic therapy with Aminolaevulinic acid 10%, activated by
a laser at 635 nm and 100 J/cm2 per session, for 6 to 8 sessions.
If proven dysplastic then go for surgical excision.
35. Actinic cheIlitis
Actinic cheilitis (AC) is a chronic inflammatory disorder of the lips
that is caused by prolonged exposure to sunlight in susceptible
individuals.
The word has been derived from the Greek words "aktis" meaning
"ray" and "cheilos" meaning "lips."
This disorder is considered to be potentially malignant and a
predisposing factor for the development of squamous cell
carcinoma.
Somasundaram E, Gera R, Peethambaran HB. Actinic cheilitis: A review. J Indian Acad
Oral Med Radiol 2015;27:569-71
36. Etiology:-
This disorder manifests itself after prolonged exposure to sunlight
UV rays with a wavelength of 290-320 nm are held responsible for
the sunlight-induced deleterious changes that occur in the lips.
The vermilion zone of the lower lip is more susceptible to the
effects of UV rays because of thinner epithelium, lower melanin
content, and lower sebaceous and sweat secretion.
37. Pathogenesis:-
The exact mechanism of development of Actinic cheilitis is unclear.
The chronic exposure to UV radiation (sunlight) results in
mutational changes in the keratinocytes and progressive
degradation of epithelium and inflammatory responses in the
lamina propria.
Clydesdale GJ, Dandie GW, Muller HK. Ultraviolet light induced injury: Immunological and
inflammatory effects. Immunol Cell Biol 2001;79:547-68
38. Clinical features
Age predilection:- 20-80 years of age
Sex predilection:- Can affect both men and women but ,men are
affected much more commonly than women.
Although Actinic chelitis is considered to occur commonly in fair-
skinned people, it is also found in dark-skinned people
Cavalcante AS, Anbinder AL, Carvalho YR. Actinic cheilitis: Clinical and
histological features. J Oral Maxillofac Surg 2008;66:498-503.
39. It affects the lower lip exclusively because of its anatomic orientation that
exposes it to sunlight.
It initially occurs as an asymptomatic dry lip affecting the lower lip
vermilion. Advanced lesions may manifest as parallel folds or fissures, a
loss of normally distinct cutaneous vermilion border, mottling, keratotic
plaques, and erosions.
On palpation, these lesions give the sense of gloved sliding finger on fine
sand paper.
40. DIFFERENTIAL DIAGNOSIS
Squamous cell carcinoma
Basal cell carcinoma
Cheilitis Granulomatosa
Picascia DD, Robinson JK. Actinic cheilitis: A review of etiology, differential diagnosis,
and treatment. J Am Acad Dermatol 1987;17:255-64
43. Management
Topical Application of Diclofenac gel 3% once daily for 1-4
weeks
Cryotherapy: Liquid nitrogen physically destroys abnormal
cells
Laser treatment: Commonly used lasers are:-
CO2 Laser: 10600 nm
Erbium Laser: 2940 nm
Vermilionectomy/Surgical excision: preferred treatment
for severe/refractory cases
Picascia DD, Robinson JK. Actinic cheilitis: A review of etiology, differential
diagnosis, and treatment. J Am Acad Dermatol 1987;17:255-64
44. LICHEN PLANUS
Lichen – latin for primitive plants (symbiotic algae & fungi)
Planus – latin for flat
Definition : “A common chronic immunologic inflammatory
mucocutaneous disorder that varies in appearance from keratotic
(reticular or plaque like) to erythematous and ulcerative, affecting
the stratified squamous epithelium”.
45. ETIOLOGY
Unknown.
Autoimmune. T cell–mediated disease targeting basal keratinocytes
Lichenoid changes associated with galvanism, graft-versus-host
disease (GVHD), certain drugs, contact allergen.
46. Incidence
Up to 3 to 4% of Indian population has oral lichen planus.
0.5 to 1% of population has cutaneous lichen planus; 50% also
have oral lesions.
More common in White females (60%)
It occurs in 4th to 8th decades of life
47. PATHOGENESIS
OLP is a T-cell mediated autoimmune disease in which the auto-
cytotoxic CD8+ T cells trigger apoptosis of the basal cells of the
oral epithelium.
An early event in the disease mechanism involves keratinocyte
antigen expression or unmasking of an antigen that may be a self-
peptide or a heat shock protein.
Following this, T cells (mostly CD8+, and some CD4+ cells) migrate
into the epithelium either due to random encounter of antigen
during routine surveillance or a chemokine-mediated migration
toward basal keratinocytes.
Nosratzehi T. Oral Lichen Planus: an Overview of Potential Risk Factors, Biomarkers
and Treatments. Asian Pac J Cancer Prev. 2018;19(5):1161–1167.
48. These migrated CD8+ cells are activated directly by antigen binding
to major histocompatibility complex (MHC)-1 on keratinocyte or
through activated CD4+ lymphocytes.
In addition, the number of Langerhan cells in OLP lesions are
increased along with upregulation of MHC-II expression .
Subsequent antigen presentation to CD4+ cells and Interleukin (IL)-
12 activates CD4 + T helper cells which activate CD8+ T cells
through receptor interaction, interferon γ (INF – γ) and IL-2.
Nosratzehi T. Oral Lichen Planus: an Overview of Potential Risk Factors, Biomarkers
and Treatments. Asian Pac J Cancer Prev. 2018;19(5):1161–1167.
49. The activated CD8+ T cells in turn kill the basal keratinocytes
through tumor necrosis factor (TNF)-α, Fas–FasL mediated or
granzyme B activated apoptosis.
The normal integrity of the basement membrane is maintained by a
living basal keratinocyte due to its secretion of collagen 4 and
laminin 5 into the epithelial basement membrane zone.
In turn, keratinocytes require a basement membrane derived cell
survival signal to prevent the onset of its apoptosis.
Nosratzehi T. Oral Lichen Planus: an Overview of Potential Risk Factors, Biomarkers
and Treatments. Asian Pac J Cancer Prev. 2018;19(5):1161–1167.
50. Apoptotic keratinocytes are no longer able to perform this function,
which results in disruption of the basement membrane.
Again, a non-intact basement membrane cannot send a cell
survival signal. This sets in a vicious cycle which relates to the
chronic nature of the disease.
Nosratzehi T. Oral Lichen Planus: an Overview of Potential Risk Factors, Biomarkers
and Treatments. Asian Pac J Cancer Prev. 2018;19(5):1161–1167.
51. CLINICAL PRESENTATION
Variants: reticular (most common oral form); erosive (painful);
atrophic, papular,plaque types; bullous (rare)
Bilateral and often symmetric distribution
Oral site frequency: buccal mucosa (most frequent), then tongue,
then gingiva, then lips (least frequent)
52. Reticular type of lichen planus
Characterized by fine whites lines or striae.
These striae may form a network or show annular pattern.This arrangment is known
as Wickham’s striae.
It often displays a peripheral erythematous zone reflecting sub epithelial
inflammation.
Most frequently seen on buccal mucosa and dorsum of tongue and sometimes on
vermilion border of lips
53.
54. Papular type
These are characterized by white elevated lesions seen on
keratanized oral mucosa.
These lesions are oftenly spaced apart, but sometimes they may
coalesce.
They are mostly present on the periphery of striae.
55. Plaque type
It is seen on dorsum of tongue and buccal mucosa.
It consists of pearly white or grayish lesions with elevated areas
having irregular peripheries.
It spreads in a concentric peripheral growth
Mollaoglu N. Oral lichen planus: a review. Br J Oral Maxillofac Surg .2000; 38(4) 370-77
56. Bullous form
It contains of bullae which are mostly found on buccal mucosa and
posterior and lateral margins of tongue
These bullae are often short lived and rupture soon.
As these bullae rupture, these leave an ulcerated surface
associated with a striae component.
Mollaoglu N. Oral lichen planus: a review. Br J Oral Maxillofac Surg .2000; 38(4) 370-77
.
57. EROSIVE LICHEN PLANUS
It presents as chronic multiple ulcers which occur after the rupture
of bullae.
The Patient may complain of burning sensation and pain.
The common site is buccal mucousa and ventral surface of tongue
It is seen as eroded and ulcerated lesions which are irregular in
size and shape.
The surface is erythematous and may bleed upon slight
provocation. Sometimes the surface may be covered by a fibrinous
plaque.
58. ETIOLOGY OF EROSIVE LICHEN PLANUS
Drugs like hydrocholrthiazide, penicillamine, ACE inhibitors
Reaction to dental restorations
Graft vs Host disease
Systemic conditions like chronic hepatitis
Stress
59.
60. ATROPHIC TYPE
It often presents a smooth, red, poorly defined area.
The attached gingiva is most frequently involved in this type of
lichen planus, and this condition is called as desquamative
gingivitis.
At the margins of atrophic zones, whitish keratotic areas are seen.
The patient complains and burning sensation in the area of
involvment.
Mollaoglu N. Oral lichen planus: a review. Br J Oral Maxillofac Surg .2000; 38(4) 370-77
61. INVESTIGATION
Examination of oral mucosa, skin
Biopsy
Direct-immunofluorescence– fibrinogen and cytoid bodies at
interface help confirm
63. MANAGEMENT
New cases:-
Topical Corticosteroid therapy:-
Triamicinalone acetonide 0.1% 3 times a day for a maximum period
of one month
Flucinolone 0.025% 3 times a day for 2 months
Clobetasone 0.05% twice a day for 2 months
Nosratzehi T. Oral Lichen Planus: an Overview of Potential Risk Factors, Biomarkers
and Treatments. Asian Pac J Cancer Prev. 2018;19(5):1161–1167.
64. Combination therapy:-
Prednisolone 10 mg 3 times a day for 2 weeks, + Topical
Triamicinolone acetonide 0./1% three times a day till symptoms
improve.
Recalcitrant cases
Intralesional injections of Triamcinolone 0.5 ml with once/week for 4
weeks
Chloroquine 250 mg twice daily for 3 months
Nosratzehi T. Oral Lichen Planus: an Overview of Potential Risk Factors, Biomarkers
and Treatments. Asian Pac J Cancer Prev. 2018;19(5):1161–1167.
65. Azathioprine 1mg/kg/day for one month
Cyclosporine 8 mg per kg for 8 weeks
Prednisolone 5 mg + levamisole 50 mg for 3 weeks
Nosratzehi T. Oral Lichen Planus: an Overview of Potential Risk Factors, Biomarkers
and Treatments. Asian Pac J Cancer Prev. 2018;19(5):1161–1167.
66. ORAL SUBMUCOUS FIBROSIS
This condition was first described by Joshi (1952) and by Schwatz
among East Indian Women.
This is an insidious chronic disease affecting any part of oral cavity
including pharynx.
It is considered to be POTETIALLY MALIGNANT DISORDER
67. DEFINITION
According to Pindborg et al it is defined as:-
“It is an insidious chronic disease affecting any part of the oral
cavity and sometimes the pharynx. Although occasionally preceded
by or associated with vesicle formation ,it is always associated with
juxta-epithelial inflammatory reaction followed by a fibro-elastic
changes of the lamina propria with epithelial atrophy leading to
stiffness of the oral mucosa and causing trismus and inability to
eat.”
68. EPIDEMIOLOGY
OSMF is seen commonly in India and Indian subcontinent.
Sporadic cases are seen in Malaysia, Nepal, Thailand and South
Vietnam.
Population between 20 to 40 years of age are most commonly
affected.
69. ETIOLOGY
Exact etiology is unknown.
The predisposing factors are,
Chronic Irritation-Due to Chilies, Lime, Areca nut, Tobacco.
Defective iron metabolism
Bacterial Infection
Collagen disorder
Immunological disorders
Genetic disorder.
70. PATHOGENESIS
Areca Alkaloids Causing Fibroblast Proliferation:-
Among the areca alkaloids such as arecoline, arecadine,
guvacoline, guvacine, arecoline is the main agent responsible for
fibroblast proliferation.
Under the influence of slaked lime (Ca(OH) 2 ), arecoline get
hydrolyzed to arecadine, which has pronounced effects on
fibroblasts.
Wollina U, Verma SB, Ali FM, Patil K. Oral submucous fibrosis: an update. J.Clin
Cosmet Investig Dermatol. 2015;8:193–204
71. Stablization of Collagen Structure by Tanins and Catachins:-
Areca flavonoids tannins and catechins can cause increased fibrosis by
forming a more stable and non soluble collagen structure by inhibiting
collagenase enzyme activity.
Studies have shown that there is 1.5 fold increase in collagen production
by OSMF fibroblasts and with the progression of disease type 3 collagen
is completely replaced by type 1 collagen which is more resistant to
degradation.
Also there has been an excess of alpha 1 (1) chains relative to alpha 2(1)
chains, suggesting an alteration of collagen molecule during the disease
progression.
Wollina U, Verma SB, Ali FM, Patil K. Oral submucous fibrosis: an update. J.Clin
Cosmet Investig Dermatol. 2015;8:193–204
72. Inhibition of Collagen Phagocytosis:-
There is a gross imbalance in the extracellular matrix remodeling in
OSMF.
In fibrotic connective tissue lesions without marked inflammation such as
OSMF, the main route of collagen degradation is by phagocytosis and not
by extracellular digestion.
In OSMF, the reduction of phagocytic activity is inversely dose
dependent to levels of arecoline, safrole and nicotine in saliva.
Arecoline causes a suppression of T cell activity which in turn decreases
the cell mediated immunity and thus results in decreased phagocytic
activity of the cells.
Wollina U, Verma SB, Ali FM, Patil K. Oral submucous fibrosis: an update. J.Clin
Cosmet Investig Dermatol. 2015;8:193–204
73. High Copper Content in Areca Nut and Fibrosis:-
The Copper causes upregulation of lysyl oxidase enzyme which
plays a crucial role in cross linking of collagen and elastin
molecules.
Lysyl oxidase is a copper-dependent enzyme which is also an
intrinsic protein of connective tissue.
It is induced at detectable levels during fibrogenesis and
fibroproliferative process.
Wollina U, Verma SB, Ali FM, Patil K. Oral submucous fibrosis: an update. J.Clin
Cosmet Investig Dermatol. 2015;8:193–204
74. Increased Expression of Fibrogenic Cytokines:-
It has been postulated that external stimuli such as areca nut may
induce OSMF by increasing the levels of cytokines in lamina
propria and also increasing the production of cytokines by the
peripheral mononuclear cells.
An upregulation of proinflammatory cytokines i.e IL-6 and IL-8 has
been seen. It may be due to the T-cell activation, which occurs
secondary to the chronic inflammation.
Also an upregulation of certain fibrogenic cytokines such as TNF-α,
TGF-β, platelet-derived growth factor, basic fibroblast growth
factors is seen in OSMF.
Wollina U, Verma SB, Ali FM, Patil K. Oral submucous fibrosis: an update. J.Clin
Cosmet Investig Dermatol. 2015;8:193–204
75. CLASSIFICATION
Khanna JN and Andrade NN (1995) developed a group
classification system for the surgical management of OSMF:-
Group I:
Very early cases: Common symptom is burning sensation in the mouth,
acute ulceration and recurrent stomatitis and not associated with mouth
opening limitation.
Histology: Fine fibrillar collagen network interspersed with marked
edema, blood vessels dilated and congested, large aggregate of plump
young fibroblasts present with abundant cytoplasm, inflammatory cells
mainly consist of polymorphonuclear leukocytes with few eosinophils. The
epithelium is normal.
76. Group II: Early cases—Buccal mucosa appears mottled and marble like,
widespread sheets of fibrosis palpable, interincisal distance of 26 to 35
mm.
Histology: Juxta-epithelial hyalinization present, collagen present as
thickened but separate bundles, blood vessels dilated and congested,
young fibroblasts seen in moderate number, inflammatory cells mainly
consist of polymorphonuclear leukocytes with few eosinophils and
occasional plasma cells, flattening or shortening of epithelial rete-pegs
evident with varying degree of keratinization.
77. Group III: Moderately advanced cases— Trismus, interincisal distance of
15 to 25 mm, buccal mucosa appears pale firmly attached to underlying
tissues, atrophy of vermilion border, vertical fibrous bands palpable at the
soft palate, pterygomandibular raphe and anterior faucial pillars.
Histology: Juxta-epithelial hyalinization present, thickened collagen
bundles, residual edema, constricted blood vessels, mature fibroblasts
with scanty cytoplasm and spindle-shaped nuclei, inflammatory exudate
which consists of lymphocytes and plasma cells, epithelium markedly
atrophic with loss of rete pegs, muscle fibers seen with thickened and
dense collagen fibers.
78. Group IVA: Advanced cases—severe trismus, interincisal distance of
less than 15 mm, thickened faucial pillars, shrunken uvula, restricted
tongue movement, presence of circular band around entire lip and mouth.
Group IVB: Advanced cases—presence of hyperkeratotic leukoplakia
and/or squamous cell carcinoma.
Histology: Collagen hyalinized smooth sheet, extensive fibrosis,
obliterated the mucosal blood vessels, eliminated melanocytes, absent
fibroblasts within the hyalinized zones, total loss of epithelial rete pegs,
presence of mild to moderate atypia and extensive degeneration of
muscle fibers.
79. Pindborg JJ (1989) separated OSMF into three stages based on
clinical features:
Stage 1: Stomatitis includes erythematous mucousa, vesicles,
mucosal ulcers, melanotic mucosal pigmentation and mucosal
patechiae.
Stage 2: Fibrosis occurs in healing vesicles and ulcer, which is the
hallmark of this stage. Early lesions demonstrate blanching of oral
mucosa. Older lesion include vertical and circular palpable fibrous
bands in the buccal mucosa and around the mouth opening or lips,
resulting in a mottled marble like appearance of the mucosa
because of the vertical thick, fibrous bands associated with
balanced mucosa.
80. Stage 3: Sequelae of OSMF
Leukoplakia is found in more than 25% of individuals with OSMF.
Speech and hearing deficits may occur because of involvement of
the Eustachian tubes
81. Nagesh and Bailoor (1993) Classified OSMF into three stages as
follows:
Stage I Early OSMF: Mild blanching, no restriction in mouth
opening (normal distance between central incisor tips.Burnig
sensation on taking spicy food or hot beverages.
Stage II Moderate OSMF: Moderate to severe blanching, mouth
opening reduced by 33%, cheek flexibility alsodemonstrably
reduced, burning sensation also in absence of stimuli, palpable
bands felt. Lymphadenopathy, either unilateral or bilateral and
demonstrable anemia on hematological examination.
82. Stage III Severe OSMF: Burning sensation is very severe patient
unable to do day-to-day work, more than 66% reduction in the
mouth opening, cheek flexibility and tongue protrusion. Tongue may
appear fixed.Ulcerative lesions may appear on the cheek, thick
palpable band sand lymphadenopathy is bilaterally evident.
83. Haider et al (2011) divided it based on severity of the disease with
functional staging and objective measures inter-incisal opening:
Clinical Staging:
• Stage 1: facial bands only
• Stage 2: facial and buccal bands
• Stage 3: facial and labial bands
84. Functional Staging
Stage A: Mouth opening 13 to 20 mm
Stage B:Mouth opening 10 to 11mm
Stage C:Mouth opening <10mm
85. Clinical features
Site Distribution:- Most Common areas for oral submucous fibrosis is
buccal mucosa, soft palate, tongue, uvula, palatal fauces, labial mucosa
and retromolar area.
Prodromal Symptoms:- Burning sensation in mouth
Dryness of mouth
Vesiculation and ulceration
Late Symptoms:- Trismus
Difficulty in tongue protrusion
Difficulty in swallowing
86. Signs:- Blanching of mucosa or marble like appearance of mucosa.
Circumoral fibrous bands around the orbicularis oris muscle,
causing labial mucosa to become rubbery.
Vertical fibrous bands can be palpated in the region of buccal
mucosa. The buccal mucosa becomes coarse, blanched, tough
and leathery.
The movement of Soft Palate becomes restricted. Uvula becomes
shrunken and in some cases it gives a hockey stick appearance.
87. The fibrous bands radiate from pterygomandibular raphe to anterior
faucial pillar.
Tounge becomes depapillated and its mobility is restricted.
Gingiva when affected, becomes fibrotic, blanched and inelastic.
88. Blanching of mucosa giving it a
marble like appearance
Depapillated tongue
Shrunken uvula
89. HISTOPATHOLOGIC FEATURES
Atrophic Oral epithelium.
Loss of rete pegs .
Epithelial atypia may be observed.
Hyalinization of collagen bundles.
Fibroblasts decreased and blood vessels obliterated.
90. DIAGNOSIS
Clinically appreciable blanching and pallor.
Palpable bands and restriction-of mouth opening.
Severe burning sensation of mouth, aggravated by use of even
moderate spicy food.
Biopsy report
Khan S, Sinha A, Kumar S, Iqbal H Oral submucous fibrosis: Current concepts on
aetiology and management – A review.. J. Indian Acad Oral Med Radiol. 2018; 30(4):
407-11
92. NON SURGICAL THERAPY
Steriod therapy:-
Dexamethasone(4mg/ml) + hyaluronidase( 1500 I.U) given for 8 weeks.
Triamcinalone 40 mg given biweekly for 12 weeks
Topical Triamicinalone 0.1% and Betamethasone 0.5%
Methyl prednisolone 40 mg given at monthly intervals given for 6
months
Hydocortisone(12.5mg)+ hyaluronidase( 1500 I.U) given for 1 week
Khan S, Sinha A, Kumar S, Iqbal H Oral submucous fibrosis: Current concepts on
aetiology and management – A review.. J. Indian Acad Oral Med Radiol. 2018; 30(4):
407-11
93. Interferon Gamma (0.25ml) given twice a week over 8weeks
Levamisole (50mg) given at 3 times daily for 3 consecutive days in
a week for 3 alternate weeks.
Lycopene 2000 mcg for 3 months
Placental extract(2ml)+ Dexamethasone(4mg/ml) for 8 weeks.
Pentoxifylline 400 mg twice daily for 3 months.
Khan S, Sinha A, Kumar S, Iqbal H Oral submucous fibrosis: Current concepts on
aetiology and management – A review.. J. Indian Acad Oral Med Radiol. 2018; 30(4):
407-11
94. Intralesional steroid injection
Dexamethasone1.5 ml, hyaluronidase 1500 IU with 0.5 ml
lignocaine HCL injected intralesionally biweekly for 4 weeks.
Hyaluronidase by breaking down hyaluronic acid (the ground
substance in connective tissue) lowers the viscosity of intercellular
cement substance.
Dexamethasone acts as an immune suppressive agent by its
antagonistic activity on the soluble factors released by the
sensitized lymphocytes succeeding the activation by nonspecific
antigens. Thus, fibrosis is prevented by a decrease in fibroblastic
proliferation and deposition of collagen.
95. Procedure:-
An insulin syringe needle is employed for this purpose.
The Buccal mucosa is divided into 9 imaginary planes.
The Syringe is filled with Dexamethasone1.5 ml, hyaluronidase 1500 IU with
0.5 ml lignocaine HCL.
The fibrous bands are palpated in buccal mucosa and retromolar region.
The needle( thin bore needle) is directed towards the band areas of mucosa
This procedure is done twice a week for about 4 weeks
James L, Shetty A, Rishi D, Abraham M. Management of Oral Submucous Fibrosis
with Injection of Hyaluronidase and Dexamethasone in Grade III Oral Submucous
Fibrosis: A Retrospective Study. J Int Oral Health. 2015;7(8):82-85.
96. Surgical management
Excision of the fibrous bands followed by reconstruction using:-
Bilateral full thickness nasolabial flaps
Bilateral temporalis myotomy and coronidectomy
Khan S, Sinha A, Kumar S, Iqbal H Oral submucous fibrosis: Current concepts on
aetiology and management – A review.. J. Indian Acad Oral Med Radiol. 2018; 30(4):
407-11
97. ORAL PHYSIOTHERAPY
Oral Excercises are also adviced
Mouth opening using ice cream sticks and balloning of the mouth
Forceful opening of mouth using mouth gags and acrylic surgical
screw.
Khan S, Sinha A, Kumar S, Iqbal H Oral submucous fibrosis: Current concepts on
aetiology and management – A review.. J. Indian Acad Oral Med Radiol. 2018; 30(4):
407-11
98. Discoid Lupus Erythematosus
Discoid lupus erythematosus (DLE) is a chronic, scarring, atrophy
producing, photosensitive dermatosis.
It occurs in in patients with systemic lupus erythematosus (SLE),
and some patients (<5%) with discoid lupus erythematosus
progress to systemic lupus erythematosus .
Patients with Discoid lupus erythematosus rarely have clinically
significant systemic disease. Lesions may produce scarring or
atrophy.
99. Etiopathogenesis
DLE probably occurs in genetically predisposed individuals, but the
exact genetic connection has not been determined.
Genes associated with DLE are TYK2, IRF5, and CTLA4
Some of the contributing environmental factors include ultraviolet
radiation (UVR) and cigarette smoking
It has been suggested that a heat shock protein is induced in the
keratinocyte following ultraviolet (UV) light exposure or stress, and
this protein may act as a target for T-cell-mediated epidermal cell
cytotoxicity.
100. Smoking smoking provokes DNA damage, resulting in the
formation of DNA adducts and the production of ds-DNA antibodies.
Keratinocytes may also participate in lupus skin damage by
increasing the apoptotic rate and the production of proinflammatory
cytokines such as IFN-lambda.
Ranginwala AM, Chalishazar MM, Panja P, Buddhdev KP, Kale HM. Oral discoid
lupus erythematosus: A study of twentyone cases. J Oral Maxillofac Pathol
2012;16:368-73
101. ClINICAL FEATURES
DLE occurs more frequently in women in their fourth and fifth
decades of life.
It is more common in women than in men.
Although any skin area may be involved by the discoid form of
lupus erythematosus, the most common sites are the face oral
mucous membranes, chest, back and extremities.
Burrows NP, Lovel CR. Disorders of connective tissue. In: Burns T, Breathnach S, Cox N, Griffiths
C, editors. Rook’s Textbook of Dermatology. Sussex: Wiley-Blackwell; 2010. p. 4532.
102. The typical cutaneous lesions are slightly elevated red or purple
macules that are often covered by gray or yellow adherent scales.
Forceful removal of the scale reveals numerous ‘carpet tack’
extensions.
The lesions increase in size by peripheral growth, this feature
partially characterizing the disease.
103. The periphery of the lesion appears pink or red, while the center
exhibits an atrophic, scarred appearance indicative of the long-
standing nature of the disease with characteristic central healing.
The discoid form of the disease may also assume a typical
‘butterfly’ distribution on the malar regions and across the bridge of
the nose.
104. Oral MANIFESTATIONS
Oral mucous membrane involvement is reported in 20–50% of
cases of discoid lupus erythematosus.
The oral mucosa reportedly may be involved either prior to or
following the development of skin lesions or even in the absence of
skin manifestations.
Lesions begin as erythematous areas, sometimes slightly elevated
but more often depressed, usually without induration and typically
with white spots.
Schiödt M, Halberg P, Hentzer B. A clinical study of 32 patients with oral
discoid lupus erythematosus. Int J Oral Surg 1978;7:85-94.
105. Occasionally, superficial, painful ulceration may occur with crusting or bleeding
but no scale formation.
The margins of the lesions are not sharply demarcated .Often, fine white striae
radiate out from the margins. Central healing may result in depressed scarring.
The vermilion border of the lower lips is a very common site for these lesions.
The erythematous, atrophic plaques, surrounded by a keratotic border, may
involve the entire lip and extend onto the skin surface.
106. INVESTIGATIONS
Histopathology:-
Hyperkeratosis with keratotic plugging,
Atrophy of the rete pegs, liquefaction, degeneration of the basal
layer of cells, perivascular infiltration of lymphocytes and their
collection about dermal appendages, and basophilic
Degeneration of collagen and elastic fibers, with hyalinization,
Edema and fibrinoid change, particularly prominent immediately
beneath the epithelium
Karjalainen TK, Tomich CE. A histopathologic study of oral mucosal lupus
erythematosus. Oral Surg Oral Med Oral Pathol 1989;67:547-54.
107. Direct immunoflouresence:- The most characteristic DIF finding is
antibody deposition at the dermal-epidermal junction .These
deposits are typically granular, and they are composed primarily of
IgG and/or IgM.
Serological investigation for detecting the autoantibody against
annexin 1. Higher level of anti-annexin 1 antibodies are found in
DLE patients,
Chhabra S, Minz RW, Saikia B. Immunofluorescence in dermatology. Indian J
Dermatol Venereol Leprol 2012;78:677-91
108. MANAGEMENT
Corticosteroids:-
0.05% fluocinonide cream to be applied 2-4 times a day
Intralesional therapy with 2.5 to 10mg/mL triamcinolone
solution once in a month for a time period of 6 months.
0.03% of tacrolimus to be applied 2 times daily for 4 weeks
Systemic therapy with mycophenolate mofetil 1 to 3 g once daily for
2 months
Winkelmann RR, Kim GK, Del Rosso JQ. Treatment of Cutaneous Lupus
Erythematosus: Review and Assessment of Treatment Benefits Based on Oxford Centre
for Evidence-based Medicine Criteria. J Clin Aesthet Dermatol. 2013;6(1):27-38.
109. Palatal Lesions Associated with reverse smoking
Stomatitis Nicotina:-
It is also called as ‘smoker’s palate’, ‘stomatitis nicotina palati’.
It refers to a specific white lesion that develops on the hard and soft
palate in heavy cigarette, pipe, and cigar smokers.
Here, hand rolled cigarettes and cigars are smoked with the
burning end held within the mouth. This habit is called as ‘reverse
smoking’ and the lesion associated
110. This habit is prevalent in Columbia, Panama, Venezuela, Asia
(South India), and Europe (Sardinia).
In Seemandhra Pradesh, it is prevalent in the coastal areas of
Godavari, Visakhapatnam, Vizianagaram, and Srikakulam districts.
In Andhra this is reffered to as chutta smoking and habit is called as
adda poga.
In Goa dhumti is smoked, in which rolled leaf is kept inside the leaf
of jackfruit tree.
Harini G, Krishnam Raju KV, Raju DV, Chakravarthy KK, Kavya SN.
Psychosocial factors associated with reverse smoking: A qualitative
research. J Int Soc Prev Community Dent. 2016;6(6):529-534
111. The Chutta is cured tobacco wrappped in a dried tobacco leaf.
It is derived from Tamil word Shruttu, which means to roll.
About 9% of the total tobacco production in India is used to
prepare 300 million pieces of these forms of tobacco.
Reverse smoking produces palatal patches which are reported to
exhibit a malignant change of 12 per 1000 cases.
This habit is called as ‘reverse smoking’ and the lesion associated
with it is called as ‘reverse smoker palate’.
112. Changes occuring in palate:-
Keratosis:- diffuse whitening of the entire palatal mucosa.
Excrescences:- 1-3 mm elevated nodules, often with central red
dots corresponding to the opening of palatal mucous glands.
Patches:- well defined, elevated white plaques, which could qualify
for the clinical term leukoplakia.
113. Clinical Features
It is usually seen in men who are pipe smokers. It is common in
middle age and elderly adults.
Site—most commonly affected site is palate. The lesion is well
developed and prominent on hard palate.
It is restricted to the area which is exposed to heavy cigarette
smoke.
In the early stages, mucosa is reddened. It subsequently becomes
grayish white, thickened and fissured. Fissures and cracks may
appear producing a wrinkled, irregular surface.
114. The discoloration is homogenous with the exceptions of numerous
erythematous spot .
It represent focal thickening surrounding the orifice of the salivary
gland which appears as white umblicated nodule with red center.
This area is often stained black to brown because of continous
smoking.
115. Differential Diagnosis
Denture induced hyperplasia
Discoid lupus erythematosus,
Oral candidiasis,
Darier's disease
Kumari S, Mishra SK. Diagnosis of smokers' palate in a denture wearer
patient. BLDE Univ J Health Sci 2017;2(2):125-6
116. Investigations
Histopathology:-
In biopsy epithelium shows acanthosis and hyperkeratosis.
Epithelium lining of minor salivary gland often shows squamous cell
metaplasia and hyperplasia.
117. Management
Habit Cessation counselling should be given to the patient.
This lesion is completely reversible and disappears within few
weeks of discontinuing the habit.
118. REFERNCES
Burket, Lester W., Martin S. Greenberg, and Michael Glick. 2015. Burket's oral
medicine:. Hamilton, 12th Edition. Ont: BC Decke.
Wood N., Goaz P, Red and White lesions: Differential diagnosis of Oral &
Maxillofacial Lesions 5th Edition
Shafer, William G., Maynard K. Hine, and Barnet M. Levy. 2016. A textbook of
oral pathology. 8th Edition.Philadelphia: Saunders.
Somasundaram E, Gera R, Peethambaran HB. Actinic cheilitis: A review. J
Indian Acad Oral Med Radiol 2015;27(4):569-71
Cawson, R. A., and E. W. Odell. 2017. . Cawson's essentials of oral pathology
and oral medicine . 9th Edition,Edinburgh: Churchill Livingstone
Warnakulasuriya S. Clinical features and presentation of oral potentially
malignant disorders. Oral Surg Oral Med Oral Pathol Oral Radiol.
2018;125(6):582‐590
119. Cavalcante AS, Anbinder AL, Carvalho YR. Actinic cheilitis: Clinical
and histological features. J Oral Maxillofac Surg 2008;66(3):498-503.
Picascia DD, Robinson JK. Actinic cheilitis: A review of etiology,
differential diagnosis, and treatment. J Am Acad Dermatol
1987;17(2):255-64
Parlatescu I, Gheorghe C, Coculescu E, Tovaru S. Oral leukoplakia -
an update. Maedica (Buchar). 2014;9(1):88–93.
Awadallah M, Idle M, Patel K, et al. Management update of potentially
premalignant oral epithelial lesions. Oral Surg Oral Med Oral Pathol
Oral Radiol. 2018;125(6):628‐63
Clydesdale GJ, Dandie GW, Muller HK. Ultraviolet light induced injury:
Immunological and inflammatory effects. Immunol Cell Biol
2001;79(6):547-68
120. Patait M, Nikate U, Saraf K, Singh P, Jadhav V . Oral erythroplakia – A case
report. Int. J. Appl. Den. Sci. 2016; 2(4): 79-82
Khan S, Sinha A, Kumar S, Iqbal H Oral submucous fibrosis: Current
concepts on aetiology and management – A review.. J. Indian Acad Oral Med
Radiol. 2018; 30(4): 407-11
Wollina U, Verma SB, Ali FM, Patil K. Oral submucous fibrosis: an
update. J.Clin Cosmet Investig Dermatol. 2015;8:193–204
James L, Shetty A, Rishi D, Abraham M. Management of Oral Submucous
Fibrosis with Injection of Hyaluronidase and Dexamethasone in Grade III Oral
Submucous Fibrosis: A Retrospective Study. J Int Oral Health. 2015;7(8):82-
85.
Mortazavi H, Baharvand M, Mehdipour M. Oral potentially malignant
disorders: an overview of more than 20 entities. J Dent Res Dent Clin Dent
Prospects. 2014;8(1):6–14.
121. Mollaoglu N. Oral lichen planus: a review. Br J Oral Maxillofac Surg .2000;
38(4): 370-77
Nosratzehi T. Oral Lichen Planus: an Overview of Potential Risk Factors,
Biomarkers and Treatments. Asian Pac J Cancer Prev. 2018;19(5):1161–
1167.
Ranginwala AM, Chalishazar MM, Panja P, Buddhdev KP, Kale HM. Oral
discoid lupus erythematosus: A study of twentyone cases. J Oral Maxillofac
Pathol 2012;16(3):368-73
Burrows NP, Lovel CR. Disorders of connective tissue. In: Burns T,
Breathnach S, Cox N, Griffiths C, editors. Rook’s Textbook of Dermatology.
Sussex: Wiley-Blackwell; 2010. p. 4532.
Schiödt M, Halberg P, Hentzer B. A clinical study of 32 patients with oral
discoid lupus erythematosus. Int J Oral Surg 1978;7(2):85-94.
122. Chhabra S, Minz RW, Saikia B. Immunofluorescence in dermatology.
Indian J Dermatol Venereol Leprol 2012;78:677-91
Winkelmann RR, Kim GK, Del Rosso JQ. Treatment of Cutaneous Lupus
Erythematosus: Review and Assessment of Treatment Benefits Based
on Oxford Centre for Evidence-based Medicine Criteria. J Clin Aesthet
Dermatol. 2013;6(1):27-38.
Harini G, Krishnam Raju KV, Raju DV, Chakravarthy KK, Kavya SN.
Psychosocial factors associated with reverse smoking: A qualitative
research. J Int Soc Prev Community Dent. 2016;6(6):529-534.
Kumari S, Mishra SK. Diagnosis of smokers' palate in a denture wearer
patient. BLDE Univ J Health Sci 2017;2(2):125-6