Lasers have various applications in prosthodontics including gingival retraction, crown lengthening, edentulous site preparation, osseous recontouring, soft tissue management, and removable prosthodontics. Different lasers such as diode, Nd:YAG, Er:YAG, and CO2 lasers can be used depending on whether hard or soft tissue is being treated, with Er lasers able to recontour bone. Lasers provide benefits like precision, hemostasis, and improved tissue healing compared to traditional methods.
INTRODUCTION
HISTORY
PRINCIPLES OF WORKING OF A LASER
FUNDAMENTALS OF LASER
CHARACTERISTICS OF LASER
CLASSIFICATION OF LASER
EFFECTS OF LASER ON SOFT AND HARD TISSUES
VARIOUS LASERS AVAILABLE FOR PERIDONTAL USE
APPLICATION OF LASER TREATMENT IN PERIODONTAL THERAPY
ADVANTAGES & DISADVANTAGES OF LASER IN PERIODONTAL THERAPY
LASER PRECAUTIONS
LASER HAZARDS
RECENT ADVANCES
CONCLUSION
INTRODUCTION
HISTORY
PRINCIPLES OF WORKING OF A LASER
FUNDAMENTALS OF LASER
CHARACTERISTICS OF LASER
CLASSIFICATION OF LASER
EFFECTS OF LASER ON SOFT AND HARD TISSUES
VARIOUS LASERS AVAILABLE FOR PERIDONTAL USE
APPLICATION OF LASER TREATMENT IN PERIODONTAL THERAPY
ADVANTAGES & DISADVANTAGES OF LASER IN PERIODONTAL THERAPY
LASER PRECAUTIONS
LASER HAZARDS
RECENT ADVANCES
CONCLUSION
Smile designing is an essential part of aesthetic & prosthetic dentistry.This presentation deals with treatment planning and various aspects of this procedure.
This presentation is all about restoration of endodontically treated teeth, prefabricated post and core, cast post and core, direct and indirect technique.
explained with Limited matter moreover I have included all the images. if you go through a standard textbook and referred to this PPT it will help you so much I hope It helps you
Objectives and rationale
Indications
Contraindications
False indications
Treatment planning and presurgical notes
Classification
Gutmann’s
Kim’s
Steps in endosurgery
Treatment planning & Presurgical notes
Mandatory investigations
Premedication
Local anaesthesia and hemostasis
Flap
Requirements of an ideal flap
Flap design
Semilunar flap
Vertical flaps
Horizontal flap
Ochsenbein-Luebke flap
Two-step or filling first technique
Disinfection immediately prior to filling
Preparation of surgical site
Soft tissue management
Opening the flap
Flap elevation
Flap retraction
Hard tissue considerations
Locating root apex
Osteotomy
Apical curettage
Apical rood end resection
Surgery from palatal access
Post-resection filling
Root end preparation
Root end filling materials
Reverse filling
Surgery for root fractures
Surgical management of internal resorption
Radisectomy and hemisection
Intentional replantation
Closure of surgical area
Repositioning of flap and compression
Needle selection
Suturing
Post surgical care
Smile designing is an essential part of aesthetic & prosthetic dentistry.This presentation deals with treatment planning and various aspects of this procedure.
This presentation is all about restoration of endodontically treated teeth, prefabricated post and core, cast post and core, direct and indirect technique.
explained with Limited matter moreover I have included all the images. if you go through a standard textbook and referred to this PPT it will help you so much I hope It helps you
Objectives and rationale
Indications
Contraindications
False indications
Treatment planning and presurgical notes
Classification
Gutmann’s
Kim’s
Steps in endosurgery
Treatment planning & Presurgical notes
Mandatory investigations
Premedication
Local anaesthesia and hemostasis
Flap
Requirements of an ideal flap
Flap design
Semilunar flap
Vertical flaps
Horizontal flap
Ochsenbein-Luebke flap
Two-step or filling first technique
Disinfection immediately prior to filling
Preparation of surgical site
Soft tissue management
Opening the flap
Flap elevation
Flap retraction
Hard tissue considerations
Locating root apex
Osteotomy
Apical curettage
Apical rood end resection
Surgery from palatal access
Post-resection filling
Root end preparation
Root end filling materials
Reverse filling
Surgery for root fractures
Surgical management of internal resorption
Radisectomy and hemisection
Intentional replantation
Closure of surgical area
Repositioning of flap and compression
Needle selection
Suturing
Post surgical care
The term LASER is an acronym for ‘Light Amplification by the Stimulated Emission of Radiation’. As its first application in dentistry by Miaman, in 1960, the laser has seen various hard and soft tissue applications. In the last two decades, there has been an explosion of research studies in laser application. In hard tissue application, the laser is used for caries prevention, bleaching, restorative removal and curing, cavity preparation, dentinal hypersensitivity, growth modulation and for diagnostic purposes, whereas soft tissue application includes wound healing, removal of hyperplastic tissue to uncovering of impacted or partially erupted tooth, photodynamic therapy for malignancies, photostimulation of herpetic lesion. Use of the laser proved to be an effective tool to increase efficiency, specificity, ease, and cost and comfort of the dental treatment.
The use of lasers in dentistry, particularly in periodontics and peri-implant diseases, is becoming
increasingly common nowadays. Since their introduction in the late 20th century, they have revolutionized the
treatment options available for the management of periodontal disease. They allow the clinician to reach inside the
deeper pockets and help in reducing the bacterial load. They offer various advantages and have variations according
to their clinical use. This review presents an overview of their applications in periodontics.
LASERS – IT’S ROLE IN PERIODONTAL REGENERATIONhiij
The use of lasers has evolved as clinical experience along with scientific investigation. The dental
lasers of today have benefited from decades of laser research and have their basis in certain
theories from the field of quantum mechanics. When used efficaciously and ethically, lasers are an
exceptional modality of treatment for many clinical conditions that dental specialists treat on a
daily basis. The concept of using lasers for the treatment of periodontal disease elicits very strong
reactions from all sides of spectrum. Evidence suggests that lasers are useful as an adjunct or
alternative to traditional approaches in periodontal therapy. Future direction of lasers would be
towards a minimally invasive regenerative procedures along with laser assisted calculus detection
systems using laser fluorescence that is optical coherence tomography and a laser system which
selectively and completely removes the plaque and calculus that is under development. With recent
advances and development of wide range of laser wavelengths, different instrument designs and
different delivery systems, the purpose of this review is to determine the application and current
concept of lasers in the regeneration of periodontal tissues.
LASERS – IT’S ROLE IN PERIODONTAL REGENERATIONhiij
The use of lasers has evolved as clinical experience along with scientific investigation. The dental
lasers of today have benefited from decades of laser research and have their basis in certain
theories from the field of quantum mechanics. When used efficaciously and ethically, lasers are an
exceptional modality of treatment for many clinical conditions that dental specialists treat on a
daily basis. The concept of using lasers for the treatment of periodontal disease elicits very strong
reactions from all sides of spectrum. Evidence suggests that lasers are useful as an adjunct or
alternative to traditional approaches in periodontal therapy. Future direction of lasers would be
towards a minimally invasive regenerative procedures along with laser assisted calculus detection
systems using laser fluorescence that is optical coherence tomography and a laser system which
selectively and completely removes the plaque and calculus that is under development. With recent
advances and development of wide range of laser wavelengths, different instrument designs and
different delivery systems, the purpose of this review is to determine the application and current
concept of lasers in the regeneration of periodontal tissues.
LASERS – IT’S ROLE IN PERIODONTAL REGENERATIONhiij
The use of lasers has evolved as clinical experience along with scientific investigation. The dental lasers of today have benefited from decades of laser research and have their basis in certain theories from the field of quantum mechanics. When used efficaciously and ethically, lasers are an exceptional modality of treatment for many clinical conditions that dental specialists treat on a daily basis. The concept of using lasers for the treatment of periodontal disease elicits very strong reactions from all sides of spectrum. Evidence suggests that lasers are useful as an adjunct or alternative to traditional approaches in periodontal therapy. Future direction of lasers would be towards a minimally invasive regenerative procedures along with laser assisted calculus detection systems using laser fluorescence that is optical coherence tomography and a laser system which selectively and completely removes the plaque and calculus that is under development. With recent advances and development of wide range of laser wavelengths, different instrument designs and different delivery systems, the purpose of this review is to determine the application and current concept of lasers in the regeneration of periodontal tissues.
Lasers in orthodontics /certified fixed orthodontic courses by Indian dental...Indian dental academy
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.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
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.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
00919248678078
Lasers in orthodontics /certified fixed orthodontic courses by Indian denta...Indian dental academy
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.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
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.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
00919248678078
Title: Sense of Smell
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
Best Ayurvedic medicine for Gas and IndigestionSwastikAyurveda
Here is the updated list of Top Best Ayurvedic medicine for Gas and Indigestion and those are Gas-O-Go Syp for Dyspepsia | Lavizyme Syrup for Acidity | Yumzyme Hepatoprotective Capsules etc
Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
Workout Routine
Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
Importance of Flexibility and Mobility
In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
- Video recording of this lecture in English language: https://youtu.be/kqbnxVAZs-0
- Video recording of this lecture in Arabic language: https://youtu.be/SINlygW1Mpc
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
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New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
Adv. biopharm. APPLICATION OF PHARMACOKINETICS : TARGETED DRUG DELIVERY SYSTEMSAkankshaAshtankar
MIP 201T & MPH 202T
ADVANCED BIOPHARMACEUTICS & PHARMACOKINETICS : UNIT 5
APPLICATION OF PHARMACOKINETICS : TARGETED DRUG DELIVERY SYSTEMS By - AKANKSHA ASHTANKAR
Basavarajeeyam is an important text for ayurvedic physician belonging to andhra pradehs. It is a popular compendium in various parts of our country as well as in andhra pradesh. The content of the text was presented in sanskrit and telugu language (Bilingual). One of the most famous book in ayurvedic pharmaceutics and therapeutics. This book contains 25 chapters called as prakaranas. Many rasaoushadis were explained, pioneer of dhatu druti, nadi pareeksha, mutra pareeksha etc. Belongs to the period of 15-16 century. New diseases like upadamsha, phiranga rogas are explained.
CDSCO and Phamacovigilance {Regulatory body in India}NEHA GUPTA
The Central Drugs Standard Control Organization (CDSCO) is India's national regulatory body for pharmaceuticals and medical devices. Operating under the Directorate General of Health Services, Ministry of Health & Family Welfare, Government of India, the CDSCO is responsible for approving new drugs, conducting clinical trials, setting standards for drugs, controlling the quality of imported drugs, and coordinating the activities of State Drug Control Organizations by providing expert advice.
Pharmacovigilance, on the other hand, is the science and activities related to the detection, assessment, understanding, and prevention of adverse effects or any other drug-related problems. The primary aim of pharmacovigilance is to ensure the safety and efficacy of medicines, thereby protecting public health.
In India, pharmacovigilance activities are monitored by the Pharmacovigilance Programme of India (PvPI), which works closely with CDSCO to collect, analyze, and act upon data regarding adverse drug reactions (ADRs). Together, they play a critical role in ensuring that the benefits of drugs outweigh their risks, maintaining high standards of patient safety, and promoting the rational use of medicines.
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2. Contents
Introduction
History
Fundamentals of lasers
Commonly used lasers in dentistry
Application of lasers prosthodontics
Review of literature
Conclusion
2
3. Introduction
The word laser is an acronym standing for
“Light Amplification by Stimulated Emission
of Radiation.”
3
british dental journal volume 202 no. 1 jan 13
2007, s. Parker-❶
4. A device that generates an intense beam of coherent,
monochromatic light (or other electromagnetic radiation) by
stimulated emission of photons from excited atoms or
molecules.
Lasers are used in drilling and cutting, alignment and
guidance, and in surgery.
4
5. HISTORY
The first ruby laser was developed in
1960 and many other lasers were
created rapidly thereafter.
Dental researchers began investigating
lasers’ potential, Stern and Sognnaes
reported in 1965 that a ruby laser could
vaporize enamel.
Other wavelengths were studied over the
ensuing decades for both hard and soft
tissue applications.
5
1960-first laser
1993 Nd:YAG Laser
1993 Kinetic Cavity
Preparation
1994 CO2 Laser, Argon Laser
1996 Laser welder
1997 Nd:YAP Laser
1998 Er:YAG Laser
6. Classification
Based on application
Soft tissue lasers
Eg:argon,CO2,diode, Nd:YAG
Hard tisssue lasers eg : Er:
YAG
Resin curing laser eg :argon
Mode of
action
Contact mode eg :
He:YAG, Nd; YAG
Non contact mode eg:
CO2
6
7. Based on level of energy
emission
Soft lasers
eg :He- Neon
Hard lasers
eg : Er: YAG
Based on the radiant
energy generation
Continuous
Discrete
Multiple timed
7
8. 8Lasers in Dentistry:
Dental lasers exert their desired clinical effect on a patient’s
target tissue by a process called absorption.
Dental lasers function by producing waves of photons
(quanta of light) that are specific to each laser wavelength.
This photonic absorption within the target tissue results in
an intracellular and/or intercellular change to produce the
desired result.
9. 9
Laser interaction with biologic tissues
Four different interaction
Reflection
Scatter
Absorption
Transmission
10. MECHANISM OF DENTAL
LASERS
A laser is a device that changes electrical or
chemical energy into a very fine, intense beam
of light energy that
alters light of several frequencies into an
intense, small, and nearly non-divergent beam
of monochromatic radiation, within the visible
range.
10
11. Laser Light - Laser light used for dental procedures is a
form of electromagnetic energy that has four
characteristic features
– monochromatic (laser light is of one specific colour/
single wavelength unlike ordinary white light which is a
sum of many colours of the visible spectrum),
collimation (refers to the beam having specific spatial
boundaries which ensure a constant size and shape of
the beam emitted from the laser cavity).
11
12. Coherency (means that the light waves created in the
instrument are in phase with one another and have
similar wave shapes,
i.e. all the peaks and valleys are equivalent), and
efficiency (at very low average power levels lasers can
produce the required energy to perform their specific
function,
e.g. 2 watts of Nd: YAG laser light provides the thermal
energy to precisely incise a gingival papilla).
12
13. Amplification - Amplification is part of a process that
occurs in the laser.
Lasers are generically named for the material of the
active medium, which can be a container of gas, a
crystal, or a solid-state semi-conductor.
The electromagnetic energy is generated by excitation
of an active medium like argon, CO2, yttrium,
aluminium, gallium, neodymium, or erbium that supply
source of energy.
It is raised by two mirrors which are placed parallel at
each end of the optical cavity and emerges as laser
light.
13
15. 15Advantages
No anesthesia, no drill
Less blood loss, Less pain
Reduce post –operative edema
Early healing, rapid regeneration, reduce
post sensitivity in restorations
Less chances of metastasis
Sterilization of treatment site-no infection
16. 16
Uses of laser in Dentistry:
1- Hard Tissue(cutting enamel and dentine):
Class I, II, III, IV and V cavity preparation.
Caries removal.
Hard tissue surface roughening and etching.
Enameloplasty, excavation of pits and fissures for placement of
sealants.
17. 1- Hard Tissue(cutting enamel and dentine):
Advantages:
Reduce and even eliminate the smear layer
associated with traditional rotary instruments
which can improve surface adhesion and
bond strength for restorations.
Prohibit the pain response.
Most procedures can be completed without
the aid of injected anesthetic.
17
18. 2- Bone Surgery:
Cutting, shaving, contouring and resection of
oral osseous tissues
• Osteoplasty and osseous recontouring.
• Ostectomy.
• Osseous crown lengthening.
Advantages:
Procedure can be completed without laying a
flap, suturing, or damage to the bone
18
19. 3- Soft Tissue:
• Treatment of canker sores, herpetic and
aphthous ulcers of the oral mucosa and
leukoplakia.
• Exposure of unerupted teeth.
• Flap preparation.
• Frenectomy.
• Gingivectomy or gingivoplasty.
• Gingival troughing for crown impressions.
• Hemostasis.
• Vestibuloplasty.
19
21. 214- Soft Tissue:
Advantages:
Capability to atraumatically treat
soft tissue with little to no
bleeding, little edema, and
positive post-operative results.
22. 22
5- Root Canal treatment:
• Root canal preparation
including enlargement.
• Pulpotomy.
• Apicoectomy –
amputation of the root end.
23. 23
6- Periodontology:
• Sulcular debridement (removal of
diseased or inflamed soft tissue in
the periodontal pocket).
• Laser soft tissue curettage of the
post-extraction tooth sockets or the
periapical area during apical
surgery.
• Flap preparation.
25. 257- Others:
Diagnostic laser for caries and calculus detection.
Composite curing laser.
Optical impression like CAD/CAM.
Teeth bleaching.
26. Laser applications in Fixed
Prosthodontics
Gingival retraction
Recontouring of the gingival margin for crown
lengthening
Edentulous site preparations
Osseous Recontouring for crown
lengthening
26
Atlas of laser applications in dentistry , Donald J Coluzzi, Robert A. Convissar
27. Removing intrusive or extrusive tissue
around the margins of tooth
preparations , increasing the length of
clinical crowns, or contouring
edentulous sites for fixed partial
dentures
27
Walsh L J . The current status of laser applications in
dentistry . Aust Dent J 2003; 48: 146-155
28. Laser instruments provide
Excellent surgical precision
Hemostasis
Tissue healing
28
Janda P , Sroka R , Mundweil B, Betz Comparison of thermal tissue effects
induced by contact application of fibre guided laser systems . Lasers Surg
Med 2003 ; 33 : 93-101
29. All dental lasers may be used for soft tissue
procedures, but only the erbium (Er) family of
lasers is effective in removing and
recontouring bone .
Conventional modalities are not yet replaced
with laser
Er lasers are used for complete tooth
preparations of crowns or veneers
29
The Er:Cr:YSG Laser in various restorative treatments ,
Schalter R , J Acad Laser Dent 2005;13:26-29
30. Successful fixed prosthodontics ensure
excellent esthetics, improved occlusion and
healthy periodontium and dental lasers can
be used to achieve these results
30
Parker S. The use of lasers in fixed
prosthodontics . Dent Clin North Am 2004; 48;
971-978
34. 34SOFT TISSUE MANAGEMENT
AROUND ABUTMENTS
ARGON laser provide excellent
Hemostasis and Coagulation
Gingival Retraction for making
impression during a crown and
bridge procedure becomes easy
35. Recontouring of the gingival
margin for crown lengthening
It can be used to re-establish biologic width
when tooth preparation must encroach on
this area
Gingival re-contouring may be performed
with all dental laser wavelength
35
36. Diode laser , 810nm set to 0.8 W continuous wave with
a 400uk fiber
Nd: YAG 3 W continuous wave with 250um sapphire
tip
Nd: YAG laser set to 100 mJ, 20 Hz with a 320um fiber
CO2 laser, 10600 nm, 6 W
36
38. Edentulous site preparation
Edentulous site often need to be reshaped to provide
esthetic emergence profile for restorations
Both soft tissue and alveolar crest can be contoured
with laser instruments
Any laser can be used to reshape soft tissue but only
Er lasers can be used to recontour the underlying
osseous structure
38
41. Laser applications in
removable prosthodontics
Treatment of inflamed soft tissue
Soft tissue denture base modification
Torus reduction
Reduction of residual ridge and maxillary
tuberosity
41
Atlas of laser applications in dentistry , Donald J
Coluzzi, Robert A. Convissar
42. TUBEROSITY REDUCTION
The most common reason for
enlarged Tuberosity usually is
soft tissue hyperplasia
It affects stability of prosthesis
Surplus soft tissue should be excised
using soft tissue lasers
42
43. RESIDUAL RIDGE MODIFICATION
For proper retention, stability and support
for the prosthesis, residual ridge
modification is done with lasers, in pre
prosthetic preparation phase for
• Under cuts
• Flabby tissue
43
46. Persistent trauma from a sharp denture
flange
Over compression of the posterior dam area
The lesion can be excised with any of the soft
tissue lasers and the tissue allowed to re
epithelialize
46
47. Torus reduction
Tori and exostoses are formed
mainly of compact bone.
They may cause ulceration of
oral mucosa.
They may also interfere with
lingual bars or flanges of
mandibular prostheses.
Soft tissue lasers may be use to
expose the exostoses and
Erbium lasers may be use for the
osseous reduction.
47
49. 49SECOND STAGE UNCOVERING
Following the placement of implant and its Osseo
integration, Er:YAG laser can be used to uncover
implants
Little blood contamination (haemostatic effects)
Minimal tissue shrinkage
Eliminate trauma to the tissues during flap reflection
Impressions can be obtained at the same appointment
ADVANTAGES OVER CONVENTIONAL
SURGERY
51. 51
Immediately healing caps are
laser exposed and soft tissue is
re contoured
Soft tissue healing within 2
weeks
52. 52
IMPLANT SITE PREPARTION
Lasers can be used for the placement of mini
implants especially in patients with potential
bleeding problems, to provide essentially
bloodless surgery in the bone
53. 53
Lasers can be used to repair ailing implants by
decontaminating their surfaces with laser
energy.
Lasers can also be used to remove inflamed
granulation tissue around an already
osseointegrated implant.
Diode, CO2 & Er:YAG lasers can be used for
this purpose.
55. Topologic data of the patient’s deformity is
acquired using laser surface digitizing, the
procedure is called Laser Holography
Imaging
Lasers aid in creating a visually realistic
prosthesis that can provide an illusion of
normal appearance.
55
Optic letters vol.24, issue 5 pg 291-293;
1999
56. 56Laser welding
No need for investment and soldering alloy
Working time is decreased
Easy to operate
Minimal heat damage to denture base resin
Advantages over Conventional
Soldering
An alternative method to join dental casting
alloys such as broken clasp
57. 57
Laser scanning of casts can be linked to
computerized milling equipment for fabrication of
restorations from porcelain and other materials.
58. Conclusion 58
Lasers - alternative to
conventional surgical systems
Lasers are a “new and
different scalpel” (optical knife,
light scalpel)
59. References :
Atlas of laser applications in dentistry , Donald J Coluzzi, Robert A.
Convissar
Introduction, history of lasers and laser light production; S.
Parker1BRITISH DENTAL JOURNAL VOLUME 202 NO. 1 JAN 13 2007 1-
9
Kesler G Clinical applications of lasers during removable prosthetic
reconstruction. Dent Clinic North Am 2004: 48:963-969
Bareli. Er: YAG laser in oral soft tissue surgery . J Oral Laser Appli 2001; 24
Priya Nachrani Rajeev Umesh Vivek. Laser in rosthodontics –review
.NJDSR number 2, vol 1, jan 2014
Laser and it’s Application in Prosthetic Dentistry . Shaista Durrani .Int J Dent
Med Res | MAR- APR 2015 | VOL 1 | ISSUE 6
59
60. Adams TC , Pang PK. Lasers in asthetic dentistry. Dent Clinc North Am
2004:48
Ishika I, Aoki A, Takaski AA. Potential applications of Erbium: YAG laser in
periodontics. JnPriodont Res 2004;39: 275-285
60
Laser we could say ..it is a new adventure or modern treatment modality or new arm and its applications are there in enumerous fields ..in dental fields also it might over take the conventional treatment methods
1917- albert einstein- established foundations for laser- father of laser
1928 rudolf-confimed the existence of laser
1950-Alfred kestler –experimentaly confirmed laser – nobel prize for physics