We in Chinthamani Laser Dental Clinic & Implant Centre ,cover every speciality and subspeciality in dentistry so that all kind of your dental problems can be treated efficiently and effectively.
Contact us:
Chinthamani Laser Dental Clinic & Implant Centre
1/464,Mount Poonamallee High Road,
Iyyapanthangal,
Chennai-56
Phone no.044-43800059 , 92 83 786776
Email:
chinthamanidental@gmail.com,
dr_mrgvl@gmail.com
Website:
www.chinthamanilaserdentalclinic.com
THE PAINLESS REMOVAL OF WHOLE TOOTH,OR ROOT,WITH MINIMAL TRAUMA TO THE INVESTING TISSUES,SO THAT THE WOUND HEALS UNEVENTUALLY AND NO POST- OPERATIVE PROSTHETIC PROBLEM IS CREATED .
All the mistakes are rectified.Complete and precise knowledge about EXODONTIA .I would like to again focus on compatibility of this ppt;some pictures differ from original one.Animations and Transitions added are not visible .Good for beginners to understand and remember.Images give you better way to grasp.Enjoy and have fun watching this ppt.
We in Chinthamani Laser Dental Clinic & Implant Centre ,cover every speciality and subspeciality in dentistry so that all kind of your dental problems can be treated efficiently and effectively.
Contact us:
Chinthamani Laser Dental Clinic & Implant Centre
1/464,Mount Poonamallee High Road,
Iyyapanthangal,
Chennai-56
Phone no.044-43800059 , 92 83 786776
Email:
chinthamanidental@gmail.com,
dr_mrgvl@gmail.com
Website:
www.chinthamanilaserdentalclinic.com
THE PAINLESS REMOVAL OF WHOLE TOOTH,OR ROOT,WITH MINIMAL TRAUMA TO THE INVESTING TISSUES,SO THAT THE WOUND HEALS UNEVENTUALLY AND NO POST- OPERATIVE PROSTHETIC PROBLEM IS CREATED .
All the mistakes are rectified.Complete and precise knowledge about EXODONTIA .I would like to again focus on compatibility of this ppt;some pictures differ from original one.Animations and Transitions added are not visible .Good for beginners to understand and remember.Images give you better way to grasp.Enjoy and have fun watching this ppt.
Definition
Types
Indications
Local Contraindications
Systemic Contraindications
Pre Operative Assessment
Dental Surgeon Chair Positions
Post Operative Assessment
Mechanical principles involved in tooth extraction
Lever
Wedge
Elevators
Role of Forceps
Principles of elevator and forceps use
Motions of Forcep's
Procedure for closed extraction
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.
Flap Design, one from important topics in Oral Surgery Syllabus, student must be know:
Definition Incision and flap.
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Transalveolar extraction and intraalveolar .pptxMofeedAlkholaidi
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ملفات متنوعة في مجال طب وجراحة الفم والاسنان تختصر بالمعلومات الكافئة حول مجان الطب وتوظيف كل مايتعلق في الجوانب العلمية والمعرفسة لدى الطلاب ، وتسهم ايضا في جمع المعلومات الكافئة للوصول الى ادراك الفهم والاستيعاب لدى الطالب في جمع المعلموات عبر الانترنت ملفات متنوعة في مجال طب وجراحة الفم والاسنان تختصر بالمعلومات الكافئة حول مجان الطب وتوظيف كل مايتعلق في الجوانب العلمية والمعرفسة لدى الطلاب ، وتسهم ايضا في جمع المعلومات الكافئة للوصول الى ادراك الفهم والاستيعاب لدى الطالب في جمع المعلموات عبر الانترنت
ملفات متنوعة في مجال طب وجراحة الفم والاسنان تختصر بالمعلومات الكافئة حول مجان الطب وتوظيف كل مايتعلق في الجوانب العلمية والمعرفسة لدى الطلاب ، وتسهم ايضا في جمع المعلومات الكافئة للوصول الى ادراك الفهم والاستيعاب لدى الطالب في جمع المعلموات عبر الانترنت
Definition: The ideal tooth extraction is painless removal of the whole tooth or tooth root with minimal trauma to the investing tissues so that the wound heals uneventfully and no post operative prosthetic problem is created.
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.
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Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
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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.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
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The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
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3. Introduction
Since the earliest period of history ,the extraction of
tooth has been considered a very formidable procedure by
the layman
Many patients suffer from “extractionfobia” and are often
difficult to care for despite modern methods of anesthesia
Many dentists still believe that speed is essential when
extracting teeth
4. Definition
The painless removal of the whole tooth, or root, with minimal trauma to the
investing tissues, so that the wound heals uneventfully and no post-operative
prosthetic problem is created
Geoffrey L Howe
6. Indications
Caries in 48.8% cases (Allen 1994), abscess
Periodontal diseases, in 40.7% cases, to prevent alveolar ridge
resorption
Tooth with necrosed pulp and periapical lesion, not responding to
endodontic treatment
Over retained deciduous tooth
Orthodontic purpose
Prosthetic purpose
7. Indications (contd.)
Unrestorable tooth
Impacted tooth
Supernumerary tooth
Grossly decayed 1st/2nd molar, make space for 3rd molar
Tooth in fracture line
Teeth directly involved by cyst and tumor
Teeth in the area of therapeutic irradiation
Teeth acting as foci of infection
9. Preoperative analysis of patient
General disease
Nervousness
Previous difficulty with extraction
Oral hygiene status of the patient
Oral prophylaxis
Antiseptic mouth rinse
Clinical examination of the tooth
Clinical examination of the oral cavity- any prosthesis
10. Factors complicating extractions
Restriction by the lips and cheeks
Movement of the tongue
Movement of the mandible
Communication of the mouth with the pharynx and larynx
Flooding of the oral cavity with micro-organisms
The related structures such as floor of mouth, tongue, hard and soft
palate may be damaged
11. Factors of tooth
Abnormal number of roots
Abnormal shape of roots
Unfavourable root pattern
Caries extending into root
Ankylosis
Resorption of root
13. Dental Elevators
Elevators are single bladed instruments designed to loosen or
remove roots, root fragments, or teeth , which they do by moving
them out of the sockets along a path determined by natural
curvature of the roots.
Rules of using an elevator
Never use adjacent tooth as fulcrum
Never use lingual plate as fulcrum
Never use buccal plate as fulcrum except where odontectomy has
been performed
Always use finger guards to protect the patient
16. Mechanical Advantage
R * ¼ =
E * ¾
R = 3E
MA=R/E
=3
Fulcrum is located in between the input effort and the output load
Resistance * Short Arm = Effort * Long Arm
Long Arm = ¾ of total arm
Short Arm = 1/4 of total arm
Example - Straight elevator (coupland elevator)
18. Mechanical Advantage
Effort * length
= resistance*
height
E*L = R*h
where L= 10
mm ; H = 4
mm
R/E = 10/4 =
2.5
Wedge is a simple machine & consists of two movable inclined planes which
meet & form a sharp angle
R – Resistance E – Effort L – Length H - Height R
E.g. : Apexo Elevator , Warwick James l E
20. Mechanical Advantage
Effort * radius
of wheel =
resistance *
radius of axle
E* Rw = R * ra
where Rw =
42 ; ra = 9
MA = Rw/ra =
42/9 = 4.6
A machine made up of two circular objects of different size
Effort applied to the wheel turns the axle or effort applied to the axle turns
the wheel
Example : Cross bar elevator , Cryer elevator
29. Forceps
Forceps are the
main instruments
used in the
extraction of teeth.
Forceps help in
dilation of the
alveolar socket,
luxation of tooth
and its removal.
32. Extraction movement
Primary movement: Along longitudinal axis of
root
Secondary movement: Main extracting movement
Rotatory
Buccolingual or labiolingual
Mesiodistal
Lifting the tooth
32
33. Upper central and lateral
incisor
Rotation only
Upper canine
Rotation initially, some labio-
lingual movement may be
needed
Upper premolar and molar
Bucco-palatal movement
33
34. Lower central and lateral
incisor
Rotatory movement
Lower canine
Rotatory and labio-lingual
Lower premolar
Rotatory
Lower molar
Bucco-lingual movement
34
37. Transalveolar extractions
Involves the removal of a full thickness mucoperiosteal flap
Bone obstructing the removal of tooth is cut
Sectioning of the roots is done
Entire tooth removed in successive sections
38. Incision
• Tissue should be handled gently
• Sharp dissection should be used
• Careful hemostasis should be attained
• Tension should be avoided
41. Most endodontic surgery problems can be avoided
by using the following incision rules
Firm continuous incision
An incision should not cross an underlying bony defect
The vertical incision should be in the concavities between bone eminences
The vertical incision should not extend into the muccobuccal fold
The termination of the vertical incision at the gingival crest must be at the
mesial or distal line angle of the tooth
The base of the flap must be at least equal to the width of its free end
48. The termination of the vertical incision
at the gingival crest must be at the
mesial or distal line angle of the tooth
49. The base of the flap must be at least
equal to the width of its free end
50. Goals of flap design
To allow for complete access and visualization of the
surgical field
To allow for bone removal and tooth sectioning
To prevent unnecessary trauma to soft tissue and bony
structures
51. Principles of flap design
The flap should offer adequate access and have an
adequate blood supply
The flap must be of adequate size and fully reflected
The edges must lie on the sound bone
Can be maintained with sutures and is expected to
heal
65. Immediate
Extraction or luxation of surrounding teeth
Fracture of maxillary tuberosity
Gingival laceration
Fracture of mandible
Oroantral communication
67. References
The extraction of teeth – Geoffrey L. Howe
Oral and Maxillofacial surgery – Daniel M. Laskin
Online sources
Editor's Notes
Indications for the use of Elevators
To reflect mucoperiosteum
Elevators can be used to luxate the tooth before applying the forceps for extraction
To luxate and remove the tooth from its socket which might fracture when engaged with forceps.
To remove a fracture or carious tooth which might fracture when engaged with beaks.
To remove inter-radicular bone.
To remove a fracture root when the fracture line is below the cervical line.
Lever Principle: The lever principle has three basic components : Fulcrum, effort, and load. In a Lever of first order, the position of fulcrum is between the effort and the load. In this principle, to gain a mechanical advantages the effort arm on one side of the fulcrum should be longer than the effort arm on other side of fulcrum. The force is transmitted at the long effort arm and mechanical advantage is gained at the short load arm.
Applied to Elevators : this principle is used in elevators wherein the handle of the elevator represents the effort, and the working end engages the tooth represents load.