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.
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.
Includes most common tumors of oral cavity including scc,bcc, melanoma, ameloblastoma, odontoma, fibromas, pindborg tumors etc.
Presented by Dr. Binaya Subedi
Benign, locally aggressive tumor of odontogenic epithelium, Previously called adamantinoma, Second most common odontogenic tumor after odontoma, Mandible is most common site, Usually asymptomatic and can be found incidentally on routine dental examinations
A cyst is an epithelium-lined sac containing fluid or semisolid material. In the formation of a cyst, the epithelial cells first proliferate and later undergo degeneration and liquefaction. The liquefied material exerts equal pressure on the walls of the cyst from within. Cysts grow by expansion and thus displace the adjacent teeth by pressure. May can produce expansion of the cortical bone. On a radiograph, the radiolucency of a cyst is usually bordered by a radiopaque periphery of dense sclerotic bone. The radiolucency may be unilocular or multilocular. Odontogenic cysts are those which arise from the epithelium associated with the development of teeth. The source of epithelium is from the enamel organ, the reduced enamel epithelium, the cell rests of Malassez or the remnants of the dental lamina.
Odontogenic keratocyst (OKC) is the cyst arising from the cell rests of dental lamina. It can occur anywhere in the jaw, but commonly seen in the posterior part of the mandible. Radiographically, most OKCs are unilocular when presented at the periapex and can be mistaken for radicular or lateral periodontal cyst.
presentation for department of oral medicine and radiology.
while presenting make sure to focus more on differential diagnosis and read about each cyst in detail as i havent included the details.
Includes most common tumors of oral cavity including scc,bcc, melanoma, ameloblastoma, odontoma, fibromas, pindborg tumors etc.
Presented by Dr. Binaya Subedi
Benign, locally aggressive tumor of odontogenic epithelium, Previously called adamantinoma, Second most common odontogenic tumor after odontoma, Mandible is most common site, Usually asymptomatic and can be found incidentally on routine dental examinations
A cyst is an epithelium-lined sac containing fluid or semisolid material. In the formation of a cyst, the epithelial cells first proliferate and later undergo degeneration and liquefaction. The liquefied material exerts equal pressure on the walls of the cyst from within. Cysts grow by expansion and thus displace the adjacent teeth by pressure. May can produce expansion of the cortical bone. On a radiograph, the radiolucency of a cyst is usually bordered by a radiopaque periphery of dense sclerotic bone. The radiolucency may be unilocular or multilocular. Odontogenic cysts are those which arise from the epithelium associated with the development of teeth. The source of epithelium is from the enamel organ, the reduced enamel epithelium, the cell rests of Malassez or the remnants of the dental lamina.
Odontogenic keratocyst (OKC) is the cyst arising from the cell rests of dental lamina. It can occur anywhere in the jaw, but commonly seen in the posterior part of the mandible. Radiographically, most OKCs are unilocular when presented at the periapex and can be mistaken for radicular or lateral periodontal cyst.
presentation for department of oral medicine and radiology.
while presenting make sure to focus more on differential diagnosis and read about each cyst in detail as i havent included the details.
This seminar consists of various cysts seen in the oral cavity alonh with various classifications and added case repots for better understanding and the various treatment protocols followed for treating various cysts.
Additional conservative esthetic procedures by dr.maryam salmanDr.Maryam Salman
this lecture involve the artistic element for designing a beautiful and natural smile and how to produce natural dental look with simple esthetic dental procedures
this lecture is about how to deal with tooth avulsion from the onset of trauma until the complete management in a form of informative case presentation
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
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.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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.
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.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
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.
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
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
2. DEFINITION
Cyst is defined as pathologic cavity having fluid, semifluid, or
gaseous contents.
The majority is lined wholly or in part by epithelium
• WALL (made of connective
tissue)
• EPITHELIAL LINING
• LUMEN OF CYST
3. KEY FEATURES OF JAW CYSTS
Form sharply-defined radiolucencies
with smooth borders
Form compressible and fluctuant swellings
Appear bluish when close to the mucosal surface
4. KEY FEATURES OF JAW CYSTS
Symptomless unless infected and are frequently chance
radiographic findings
Rarely large enough to cause pathological fracture
7. RADICULAR CYST
•3rd &4th decade
• male predilection
• ANT. MAXILLA> MANDIBLE
• IN MANDIBLE,MOST COMMONLY POSTERIOR TOOTH
Practical point with a jaw cyst Always determine the vitality
of teeth associated
8. RADICULAR CYST
Signs & symptoms
• Primarily symptom less.
• Discovered accidentally during routine
dental X ray exam.
• Slowly enlarging hard bony swelling
initially. Later, if cysts breaks through
cortical plates, lesion becomes
fluctuant.
• Diagnostic criteria – associated teeth
are non vital
9. RADIOLOGICAL FEATURES
• Classically presents as round / ovoid lucency with
sclerotic borders and associated with pulpally affected
tooth / teeth.
• If infection supervenes, the margins become
indistinct, making it impossible to distinguish it from a
peripaical granuloma.
Radiograph of a radicular cyst. The lesion is a well
defined radiolucency associated with the apex of a non-
vital root filled tooth.
RADICULAR CYST
12. RESIDUAL CYSTS
• Residual cyst developed from residual periapical infection or
from cyst fragment left following extraction of non vital tooth.
because the cause of the cyst has been removed, residual cysts may
progressively become less inflamed.
Aspirated fluid : straw
13. RESIDUAL CYSTS
Radiographically: isolated , circumscribe , unilocular radiolucency
in the alveolar process but without abvious causative tooth.
Same clinical feature of radicular cyst
16. PARADENTAL CYSTS
• A cyst of inflammatory origin- occurring on lateral aspect of root of
partially erupted mandibular 3rd molar with an associated history of
pericoronitis
• Age : 20-40 years
• Tooth is vital
• Facial swelling
17. PARADENTAL CYSTS
Radiographic features:
• Affected tooth is tilted
• Well demarcated
RadioLucency distal to
partially erupted tooth
• Lamina Dura is intact
• New bone may be laid down
(a,b) Two cases of bilateral paradental cysts associated with erupting
mandibular third molar teeth. The cysts are distal and buccal to the involved
teeth. Note that the periodontal ligament space is not widened and that the
distal part of the cyst is separate from the distinct distal follicular space.
20. DENTIGEROUS CYST
Pathogenesis
• The dentigerous cyst is defined as a cyst that originates by the separation of the follicle
from around the crown of an unerupted tooth
• The dentigerous cyst encloses the crown of an unerupted tooth and is attached to the
tooth at the cementoenamel junction
• It develops by accumulation of fluid between the reducedmenamel epithelium and the
tooth crown
21. DENTIGEROUS CYST
CLINICAL FEATURES
• AGE : 1st to 3rd decades.
• GENDER :more frequently in males than in females.
• SITE :
• 2/3rd associated with unerupted mandibular 3rd molar
• Maxillary canine
• Mandibular premolar
• Maxillary 3rd Molar
• Supernumerary tooth also can be involved
23. DENTIGEROUS CYST
Signs & symptoms
• Most cysts grow to a large size before being discovered
accidentally while observing a dental x ray to detect the cause of
an unerupted tooth.
• Large lesions can cause cortical expansion, leading to facial
asymmetry, teeth displacement, root resorption, even pain, if
infected.
24. DENTIGEROUS CYST
RADIOLOGICAL FEATURES
• Manifests as unilocular, well defined, ‘lucency with sclerotic
margins, associated with crown of impacted / unerupted tooth.
• A large DC may show persistence of boney trabeculae, giving the
appearance of multilocularity.
25. • CENTRAL TYPE:
• LATERAL TYPE :
• CIRCUMFERENTIA TYPE :
RADIOLOGICAL FEATURES
DENTIGEROUS CYST
27. COMPLICATION
1. Recurrence
2. Development of
ameloblastoma.
3. Development of squamous
cell carcinoma.
4. Development of
mucoepidermoid carcinoma
from mucus secreting cells in
the lining.
dentigerous cyst
29. Odontogenic Keratocyst
• OKC’s arises from cell rests of the dental lamina.
• Have a different growth mechanism and biologic behavior from the
more common dentigerous cyst and radicular cyst.
• Several investigators suggest that odontogenic keratocysts be
regarded as benign cystic neoplasms rather than cysts
30. Odontogenic Keratocyst
CLINICAL FEATURES
• AGE: Occurs over a wide age range and cases have been recorded
as early as the first decade and as late as the ninth
•In most series there has been a pronounced peak frequency in
the second and third decades
• GENDER: More frequently in males than in females
• SITE:The mandible is involved far more frequentlythan
• the maxilla
•50% cases occur in angle region and extending to the
ascending ramus and forwards to
• body of mandible
31. Odontogenic Keratocyst
CLINICAL FEATURES
• Pain, swelling or discharge.
• Occasionally, paraesthesia of the lower lip or teeth.
• Some are unaware of the lesions until they develop
• pathological fractures.
• In many instances, patients are remarkably free of symptoms until
the cysts have reached a large size, involving the maxillary sinus and
the entire ascending ramus, including the condylar and coronoid
processes.
• occurs because the OKC tends to extend in the medullary cavity and
clinically observable expansion of the bone occurs late.
34. Odontogenic Keratocyst
• COMPLICATIONS IN OKC :
1. Malignant transformation of cyst lining rare, but has been reported.
2. Recurrence – high rate of recurrence.
39. LATERAL PERIODONTAL CYST
• Age : 20 – 60 years, peak in 6th decade.
• Sex : Male predilection.
• Site : Lateral PDL regions of mandibular
premolars, followed by anterior maxilla
• Usually asymptomatic as it occurs on the
lateral aspect of root of tooth.
• Occasionally pain and swelling may
occur.
• Associated teeth are vital, unless
otherwise affected.
40. RADIOLOGICAL FEATURES
• Round to ovoid ‘lucency with sclerotic margins.
• Cyst can be present anywhere between cervical margin to root apex.
Radiograph of a lateral periodontal cyst lying
between the mandibular premolar teeth. The
margins are well corticated, indicative of slow
enlargement.
Lateral periodontal cyst. A larger
lesion causing root divergence.
Radiolucent lesion between the
roots of a vital mandibular canine
and first premolar.
44. ERUPTION CYST
CLINICAL FEATURES
• AGE : found in children of different
ages, and occasionally in adults if there
is delayed eruption
• SITE :most commonly associated with
the first permanent molars and the
maxillary incisors
46. ERUPTION CYST
RADIOGRAPHIC FEATURES
The cyst may throw a soft-tissue shadow, but there is usually no bone
involvement except that the dilated and open crypt may be seen on
the radiograph
48. GINGIVAL CYST OF ADULTS
• A number of suggestions have been
made about the pathogenesis of the
gingival cyst in adults.
• It was originally proposed that they may
arise from odontogenic epithelial cell
rests; or by traumatic implantation of
surface epithelium; or by cystic
degeneration of deep projections of
surface epithelium
Pathogenesis
49. GINGIVAL CYST OF ADULTS
Clinical features
AGE :5th – 6th decade of life
SITE :mand. canine and Premolar area;
attached gingiva or I/D papilla
Signs and symptoms:
• Slowly enlarging, well circumscribed
painless swelling.
• Invariably occurs on facial aspect of free /
attached gingiva.
• Surface of lesion is smooth and of normal color.
• Fluctuant lesion, adjacent
• teeth are vital
50. GINGIVAL CYST OF ADULTS
Radiological features
Radiograph of a gingival cyst in an adult. There is a faint radiographic
shadow (marked with arrows) indicative of superficial bone erosion.
53. CALCIFYING ODONTOGENIC CYST
CLINICAL FEATURES
• Age : Wide range, peak in 2nd decade.
• Sex : Equal.
• Site : Anterior segment of both jaws
• Swelling is the commonest complaint, seldom associated with pain.
• Intraosseous lesions can cause hard bony expansion and
resulting facial asymmetry.
• Displacement of teeth can also occur.
54. CALCIFYING ODONTOGENIC CYST
Radiological features
Radiograph of a calcifying odontogenic cyst of
the maxilla. There is a well-demarcated margin
and calcifications suggestive of tooth material.
Radiograph of a calcifying odontogenic cyst with well-demarcated
margins extending from the right to the left premolar regions of
the mandible. Numerous calcifications are present, some
suggestive of small denticles. Radiograph of a calcifying
odontogenic cyst with well-demarcated margins extending from
the right to the left premolar regions of the mandible. Numerous
calcifications are present, some suggestive of small denticles.
55. CALCIFYING ODONTOGENIC CYST
Histological features
Histological features of a calcifying odontogenic cyst
with clusters of fusiform ghost cells and focal
calcifications, lying in a stratified squamous epithelium. In this calcifying odontogenic cyst, there are sheets of ghost
cells and a focal area in which there has been induction of a
strip of dysplastic dentine (dentinoid).
57. CALCIFYING ODONTOGENIC CYST
• Also called as Odontogenic ghost cell cyst or Gorlin cyst.
• In the latest WHO publication on odontogenic tumours (Prætorius
and Ledesma-Montes, 2005) it was classified as a benign odontogenic
tumour and was renamed calcifying cystic odontogenic tumour
(CCOT).
91. • Large cystic lesion involving left
ramus of Mandible and
extending up.
• There are areas of cortical
break.
TransverseView
SURGICAL MANAGEMENT OF OKC RADICAL TREATMENT
