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
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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
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
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
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
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
Frankles appliance Is a myofunctional appliance
Functional appliance are removable or fixed appliances that aim to utilize eliminate or guide the forces arising from muscle function,tooth eruption and growth inorder to alter skeletal and dental relationship
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
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
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
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Bionator and its modification /certified fixed orthodontic courses by Indian ...Indian dental academy
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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.for more details please visit
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Activators/certified fixed orthodontic courses by Indian dental academy 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
Frankles appliance Is a myofunctional appliance
Functional appliance are removable or fixed appliances that aim to utilize eliminate or guide the forces arising from muscle function,tooth eruption and growth inorder to alter skeletal and dental relationship
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
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
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
Bionator and its modification /certified fixed orthodontic courses by Indian ...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.for more details please visit
www.indiandentalacademy.com
Activators/certified fixed orthodontic courses by Indian dental academy 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
Hybrid functional appliance/certified fixed orthodontic courses by Indian den...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.for more details please visit
www.indiandentalacademy.com
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
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
Functional appliances
For general practitioners
Prepared by
Dr. M Alruby
Functional appliances are large category of orthodontic appliances that used primarily to reposition of the mandible in order to alter the muscular forces against the teeth and craniofacial skeleton.
Functional appliances are used for growth modification procedures that are aimed at intercepting and treating jaw discrepancies. They can bring about the following changes:
1- Change the relationship of the jaws.
2- Change the direction of the growth of the jaws.
3- Acceleration of desirable growth.
4- Provide more favorable environments foe developments of dentition through:
a- Modify the muscle function.
b- Relive abnormal muscle function.
c- Selectively alter the eruptive path o the teeth.
5- Selectively inhibit the skeletal growth.
Classification of functional appliances:
1- Myotonic appliances: they are functional appliances that depend on the muscle mass for their action.
2- Myodynamic appliances: they are functional appliances that depend on the muscle activity for their action.
3- Removable functional appliances: they are functional appliances that can remove and inserted into the mouth by the patient for example: activator and bionator.
Uses and indications of functional appliances:
1- When the muscle dysfunction play a role in etiology of malocclusion.
2- Where alteration of muscle function may provides an optimum condition for normal dentofacial development.
Functional appliances may be indicated in the following:
1- Anteroposterior discrepancies on mild disproportional bases as Class II, Class III.
2- Vertical discrepancies on mild disproportional skeletal bases (open bite or deep bite).
Timing of treatment:
All the functional appliances are probably most effective in the growing children to gain maximum benefits from pubertal growth spurt.
Treatment principle:
Functional appliances work on two broad principles:
1- Force application: comprehensive stress and strain act on the structures involved and result in a primary alteration in form with a secondary adaptation in function. Most of the fixed and removable appliances work on this principle.
2- Force elimination: this principle involves the elimination of abnormal and restrictive environmental influences on the dentition thereby allowing optimal development. Thus function is rehabilitated with secondary changes in form. All functional appliances are assemblies of a few simple components. Each component has a desired function and is generally incorporated for a specific purpose. The currently used appliances are made of combination from three basic functional components. They are bite planes, shields or screens and construction of working bites. These components produce skeletal and dentoalveolar changes by acting on the following:
1- Eruption (bite plane).
2- Linguofacial muscle balance (shields or screens).
3- Mandibular repositioning (construction of working bite).
Hybrid appliances are specifically and individually tailored to exploit the natural processes of growth and development. Such an approach represents a departure from the practice of adopting a "named" appliance for the treatment of a class of malocclusion
Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
Recomendações da OMS sobre cuidados maternos e neonatais para uma experiência pós-natal positiva.
Em consonância com os ODS – Objetivos do Desenvolvimento Sustentável e a Estratégia Global para a Saúde das Mulheres, Crianças e Adolescentes, e aplicando uma abordagem baseada nos direitos humanos, os esforços de cuidados pós-natais devem expandir-se para além da cobertura e da simples sobrevivência, de modo a incluir cuidados de qualidade.
Estas diretrizes visam melhorar a qualidade dos cuidados pós-natais essenciais e de rotina prestados às mulheres e aos recém-nascidos, com o objetivo final de melhorar a saúde e o bem-estar materno e neonatal.
Uma “experiência pós-natal positiva” é um resultado importante para todas as mulheres que dão à luz e para os seus recém-nascidos, estabelecendo as bases para a melhoria da saúde e do bem-estar a curto e longo prazo. Uma experiência pós-natal positiva é definida como aquela em que as mulheres, pessoas que gestam, os recém-nascidos, os casais, os pais, os cuidadores e as famílias recebem informação consistente, garantia e apoio de profissionais de saúde motivados; e onde um sistema de saúde flexível e com recursos reconheça as necessidades das mulheres e dos bebês e respeite o seu contexto cultural.
Estas diretrizes consolidadas apresentam algumas recomendações novas e já bem fundamentadas sobre cuidados pós-natais de rotina para mulheres e neonatos que recebem cuidados no pós-parto em unidades de saúde ou na comunidade, independentemente dos recursos disponíveis.
É fornecido um conjunto abrangente de recomendações para cuidados durante o período puerperal, com ênfase nos cuidados essenciais que todas as mulheres e recém-nascidos devem receber, e com a devida atenção à qualidade dos cuidados; isto é, a entrega e a experiência do cuidado recebido. Estas diretrizes atualizam e ampliam as recomendações da OMS de 2014 sobre cuidados pós-natais da mãe e do recém-nascido e complementam as atuais diretrizes da OMS sobre a gestão de complicações pós-natais.
O estabelecimento da amamentação e o manejo das principais intercorrências é contemplada.
Recomendamos muito.
Vamos discutir essas recomendações no nosso curso de pós-graduação em Aleitamento no Instituto Ciclos.
Esta publicação só está disponível em inglês até o momento.
Prof. Marcus Renato de Carvalho
www.agostodourado.com
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
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.
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
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The Gram stain is a fundamental technique in microbiology used to classify bacteria based on their cell wall structure. It provides a quick and simple method to distinguish between Gram-positive and Gram-negative bacteria, which have different susceptibilities to antibiotics
Basavarajeeyam is a Sreshta Sangraha grantha (Compiled book ), written by Neelkanta kotturu Basavaraja Virachita. It contains 25 Prakaranas, First 24 Chapters related to Rogas& 25th to Rasadravyas.
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
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
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
Adv. biopharm. APPLICATION OF PHARMACOKINETICS : TARGETED DRUG DELIVERY SYSTEMS
Functional appliances
1. Functional appliances
-Undesirable class 2 : upper teeth are too forward
-Class 1: Upp. K9 distal to low.K9 , the M-B cusp of upp. 1st molar fits into the B
groove of the low. 1st molar
How can class 2 change to class1?
By any combination of:
Moving the upp. Backward
= = low. Forward
2 figures low pull and high pull (push the top jaw backward)
extract the 2 upp. Pre. And retract the ant.
Move the upp. Teeth distally (molar distalizer)
Figure of “smart alex appliance” fro (space opening or protraction)
-Functional treatment: holding the ow. Jaw forward and waiting for growth and
remodeling to make the change permanently.
-Functional appliances: are removable or fixed appliance that alter the posture of
the man. And transmit the force created by the resulting stretch of the muscles
and s.t. and by the change in the neuwomuscuarenvi. To the dental and skeletal
tissue to produce movement of theteeth and modification to the growth of the
jaw and low. face .
-.The most common use of the functional appliance is to encourage the forward
growth of a retrusive or “under-developed’ low. Jaw.
.-The functional appliance hold the low. Jaw forward over a period until the
teeth, jaw amd joint have “adapted” and the desired jaw postion has been
obtained .
.-Functional appliance align the jaws not the teeth, so they are usually used as a
first stage of tx. (in a growing patient with a significant jaw disharmony) prior to
the alignment of the teeth with fixed appliances (braces).
-Indications for functional appliances:
.Well aligned dental arches
.Posteriorpositioned man.
.Non severe skeletal discrepancy.
.Lingual tipping of man. Incisors.
.Properpatient selection.
-Contraindications:
.Class 2 skeletal by max. prognthism.
.Vertical directed grower.
.Labial tipping of low. Incisors.
.Crowding.
2. The effectiveness of a functional appl. Depends on:
-how much the appl. Is worn?
-howquickle the patient is growing?
Mode of action
Through posturing of the man, forward causing stretching of the facial
musculature.
This generate faroces which are delivered primarily to the teeth and there
will be:
1. Posteriorly directed force acts upon the upp. Arch.
2. And an anteriorly directed force acting on the low. Arch.
Dento-alveolar changes:
1. Move the upp. Teeth. Post.
2. Anterior movement of the low. Arch.
Changes in the max. growth:
1. Restriction of the max. growth similar to the headgear effect.
Changes in the man. Growth:
I.
Extra 1-2mm growth of the man..
Changes in the glenoid fossae:
o Remodeling of the glenoid fossae more ant. Has been seen in exp.
Hence the TMJ and the man. Would become repositioned slightly
further forward.
Functional appl. Do increase man. Length
-Timing of tx.:
These appl. Work only in pt, who are growing and their effect is greatest
when growth is most rapid.
The appl. Should be worn until the end of the pubertal growth spurt.
Skeletal age.
Performed during the main growth .
Period around puberty
The most favorable age for therapy
8-11 yr for girls
10-13 yr for boys (pancherz 2000)
Categories of functional appl.
-Graber & Neumann 1948 categorized functional appl into 2 categories:
i. Myodynamic : that displace the man. Only to a moderate extent.
ii. Myotomic: that displace the man. To a more extreme displacement
and rely on the elastic properties of the muscle and facia for their
action.
-Vig and Vig 1986 have proposed a classification based on the components that
each applincorporates ;these components are :
i.
ii.
iii.
Bite planes: which produce differential eruption.
Lip/cheek shields: which alter the linguofacial muscle balance.
The working bite: which effect the man. Posture.
3. -Isaacson, reed and stephens 1990RECENT , they divide these functional appl
into 2 types:
i. Rigid (Anderson, harvold, activator, bionator,etc..)
ii. More flexible (function regulator of frankel).
-Proffit (1986) proposes the following classification:
1- Tooth-borne passive.
2- Tooth-borne active
3- Tissue borne
-History of development of functional appl.
I.
Robin 1902 monobloc
II.
Anderson 1908 activator
III.
Herbst 1934 herbst
IV.
Balters 1960 bimler
V.
Frankle 1967 frankel
VI.
Clark 1977 twin block
COMPONENTS OF Fas
1. Functional components
Lingual flanges (effective)
Lingual pad (less effective)
Lingua pads contact the tissue behind the low. Incisors, the flanges are
against the alveolar mucosa below the man. Molars provide the stimulus to
posture the man. To a new position.
Lip pads: these pads are positioned in the vestibule and remove li[
pressure from the teeth. Also force the lip to stretch during function,
presumably improving the tonicity of the lips and may promote s.t.
remodeling stability of incisors position.
Sliding pin&tube:
Normally found only in the herbst appl.Also force the man. To be positioned
forward not by pressure against the mucusa, but by holding the teeth.
Bite ramps:
Ramps that contact when the pt. closes down where man. Can be posture
forward (twin block).
2. Tooth-controlling components:
I.
Arch expansion: buccal shields, wire shields, expansion screws and
spring.
II.
Vertical control: occlusal stops & bite blocks.
III.
Stabilizing components: clasps, labial bows & ant. Torqueing springs.
4. Passive tooth-brone appl.:
These appl have no intrinsic force generating capacity from springs or screw.
Depends only on s.t. stretch and muscular activity to produce tx. Effect.
Activator
fits loosely.
advances the man forward.
usesmoderat opening of vertical dimension.
incorporate a labial bow for control of max. anterior teeth.
An acrylic cap lower incisors.
Facets cut in the acrylic help direct eruption of posterior teeth.
Opens the bite 3-4mm.
The lingual flanges is the primary mechanism to position the man.
The design incorporate a labial bow for control of max. anterior teeth and an
acrylic cap over the lower incisors to control both eruption and mesial
movement.
Activator facts
Original design worn at night.
Large one piece of acrylic.
Teeth could be redirected during eruption.
Largevertical opening construction bite.
Could not speak or eat when worn.
Advanced man. Jaw.
The Woodside &Harvold Activator:
Increase vertical opening to help maintain the appl. In the mouth during
sleep by stretching the s.t.
The man is advanced so that the incisors are in edge-to-edge relationship
Max. teeth are prevented fro eruption
Man teeth are free to erupt upward and forward
Bionator:
Best described as cutdown activator
Palatal coverage is eliminated
This appl. Uses a lingual flange to regulate the posture of the man.
It usually incorporate a buccinators wraparound as an extension of the
labial bow
This design which remove much of the bulk of the activator, can include
post. Facets or acrylic occlusa; stops to control the amount and direction
of eruption
Bionator facts:
Prototype of less bulky activator
Worn day &night
Allows more tongue action
Man. Advancement
Speaking possible yet difficult
5. Tooth-Born active appl.:
these are largely modifications of activators and bionators
it include expansion screws, springs to provide intrinsic forces for
transverse and anterioposterior changes such as expansion activator.
The Stockli-type Activator:
Tooth-born appl that attempts to reduce undesirable dental changes with
the addition of high pill headgear and torqueing aprings
Vertical anterior torqueing springs to reduce lingual tipping of max.
incisors.
Hebst Appl.:
-It can be either fixed or removable.
-The max. and man splints usually are cemented or bonded to the teeth.
-It can be removable and clasps retained.
-The upp. And the low. The pin and tube apparatus that dictate the man
position joints splints.
-Occlusally a modification of this appl is superiposed on traditional fixed
appl.
-Pressure against teeth can produce significant dental movement in
addition to any skeletal effect.
Twin Block:
-Lake the Herbst, although it can be used as either a removable or
cemented device, it most effective when fixed in place.
-It is consisted of individual max. and man. Plates with ramps that guide
the man. Orward when the patient closes his man.
-The twin block work by two vertical surfaces abutting each other,
holding the lower jaw forward.
Tissue borne appl (FR):
-Frankel is the only tissue-borne functional appl.
-A small lingual pad against the lingual mucosa beneath the lower incisors
stimulates man. Repositioning.
-Much of the appl is located in the vestibule.
-It serve as an arch expansion appl in addition to its effects on jaw growth
because the arches tend to expand when lips and check pressure is
removed .
-FR I is used for class II div.1 and it incorporate lip pads ;abial to the lower
incisors to allow forward development of the man. Alveolar process.
-FR II han in addition a palatal wire to procline the upp. Incisors in class II
div.2 cases.
Clinical management of functional appl.:
Impression:
Impression for functional appl differ somewhat from those for
orthodontic records in:
1. Areas where appl components will contact s.t. must be clearly
delineated.
6. 2. The impression must not stretch and excessively displace s.t. in
an area of contact with the appl.
Bite registration:
The construction bite for a functional appl for classII advance
the man. So that the condyle are out of the fossae and separate
the jaws by a predetermined amount.
In theory, small increments of man. Advancement should
produce a greater skeletal effect relative to dental effect by
minimizing pressure against the teeth.
It is recommended for most pt, an initial advanced of 4-6mm.
Appl. Adjustments:
-Clinical adjustments of a fumctionalappl depends on its
components and purpose.
-Typical adjustments include:
1. Trimming of interocclusal elements to allow teeth to erupt
where desired.
2. Adjustment of the labial bow, almost to reduce its contact
not to increase it.
3. Outward binfing of buccal shields and lip badstp facilitate
expansion.
-Clinical adjustment of the amount of man. Advancement may or
may not be practical, depending on the metjod for advancement
that was chosen.
-With lingual flanges a new construction bite and new appl is the
best way to produce further advancement.
-Frankel appl can be sectioned so that its lingual pads slips further
forward and cold cure acrylic is added in the gap.
-Increments of advanced can be produced readily by adding
spacers to the sliding pin in case with Herbst appl.
Potential advantage of functional appl.:
Enlarge transverse width of arch to relieve crowding.
Diminish adverse fixed appl problems (gingival proliferation, TMD,
decalcification, extraction-Ismail AJO 2002).
Reduce time with braces?
Reduce eliminate dysfunctional habits.
Tx. Of TMD?
DONE BY: The one and only “Yousef AlHomaid”