2 tissue response exam, preprosthetic
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Transcript of 2 tissue response exam, preprosthetic
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TISSUE RESPONSE TO
COMPLETE DENTURE
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Long term wear of dentures lead to changes in the oral tissues
Soft tissue reaction to denture wearing
1. Injury and inflammation
- if tolerance is low
2. Fibrous tissue growth ( flabby
hyperplastic tissue)
- if tolerance is high and trauma tolerable
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Causes of Mucosal Irritation
1. Mechanical irritation by denture2. Accumulation of microbial plaque on
denture3. Toxic or allergic reaction to constituents of
denture material
* Local irritation of mucosa, increase mucosal permeability to allergens or microbial antigen
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DIRECT SEQUELA OF
WEARING DENTURE
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1. Denture Stomatitis
Classification1. Type I - a localized simple
inflammation or pinpoint hyperemia, - cause by trauma
2. Type II - a more diffuse erythema involving a part or the entire denture covered mucosa, - cause by presence of microbial plaque accumulation
3. Type III - a granular type commonly involving the central part of the hard palate and alveolar ridge, - cause by presence of microbial plaque accumulation
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Management of Denture Stomatitis
1. Correction of ill-fitting dentures- relined with soft tissue conditioner- new denture when mucosa has healed
2. Efficient plaque control (oral & denture hygiene)a. remove and clean denture after meal b. clean & massaged mucosa with soft toothbrushc. removed denture at night
3. Anti-fungal therapy - Local therapy Systemic therapy
a. nystatin a. ketoconazoleb. amphotericin B b. fluconazolec. miconazole ( resistance occur)d. clotrimazole
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2. Angular Cheilitis
Often correlated with candida-associated denture stomatitis
Predisposing Factors
1. overclosure of jaw
2. nutritional deficiencies
3. iron deficiency anemia
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3. Flabby Ridge
Due to replacement of bone by fibrous tissue Most common in anterior part of maxilla when opposed by
remaining anterior teeth in the mandible Cause by excessive load of residual ridge and unstable
occlusal condition Management
1. Remove surgically- to improve stability & to minimize alveolar ridge resorption
2. In extreme atrophy- not totally removed because vestibule will be
eliminated
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4. Denture Irritation Hyperplasia(Epulis Fissuratum)
Causes
1. Chronic injury by unstable denture
2. Thin, overextended denture flange Signs
1. Maybe single or quite numerous
2. Composed of flaps of hyperplastic connective tissue
Management
1. Adjustment of denture
2. Replacement of denture
3. Surgical excision
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5. Traumatic Ulcers(Sore spots)
Causes1. Overextended denture flange2. Unbalanced occlusion3. Nodules on the impression surface
Signs1. Develop within 1 to 2 days after placement of new denture2. Small and painful lesion, covered by a gray necrotic membrane, surrounded by an inflammatory halo with firm elevated border
Management- Adjustment of denture
* If not corrected may develop into denture irritation hyperplasia
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6. Burning Mouth Syndrome(Denture Sore Mouth)
Signs1. Burning sensation 2. Oral mucosa appears healthy3. >50 yrs old females wearing denture4. Often appears for the first time in association with the placement of new denture5. Feeling of dry mouth with persistent altered taste perception6. Headache, insomia, decreased libido, irritability, depression
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Burning Mouth Syndrome
1. local A. mechanical irritationB. allergyC. infectionD. oral habits E. myofacial pain
2. SystemicA. Vitamin deficiency ( Vit B12, Folic acid)B. Iron deficiency anemiaC. Xerostomia (radiation therapy)D. MenopauseE. Diabetes
3. Psychogenic factorsA. AnxietyB. DepressionC. Psychosocial stressors
Causes
Management- depends on the cause
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7. Gagging Cause by the tactile stimulation of
soft palate, posterior part of tongue, fauces
1. overextended borders - posterior part of maxillary denture - distolingual part of maxillary denture2. poor retention of maxillary denture3. unstable occlusal condition4. increased vertical dimension at occlusion
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INDIRECT SEQUELA OF
WEARING DENTURE
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Indirect Sequela
1. Atrophy of masticatory muscle(masseter and medial pterygoid)*Cause – reduce bite force and chewing efficiency* Preventive Measures and Management
A. use of overdentureB. use of implant supported denture
2. Nutritional deficiency*Causes
1. ill-fitting denture2. salivary gland hypofunction3. altered taste perception
*Management- mechanical preparation of food before eating
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EXAMINATION, DIAGNOSIS AND
TREATMENT PLANNING
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Definition of Terms Diagnosis
- Art of distinguishing one disease from the other, determination of the nature of a case of a disease, a evaluation of an existing condition
Treatment Planning-The process of matching possible treatment options with the patient needs and systematically arranging the treatment in order of priority but in keeping with a logical or technically necessary sequence
Treatment Plan- An initial, tentative outline of therapeutic measures to be undertaken in accordance with diagnostic data and indications
Prognosis- Probable outcome of the treatment
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DATA COLLECTION AND RECORDING
QuestionsRecordsVisual ObservationRadiographic ExaminationPalpationMeasurementDiagnostic Cast
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EXAMINATION
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EXAMINATION Case History
General information, chief complaint, history of present illness, past history, systems review
Clinical ExaminationGeneral appraisal of the patient, detailed oral
exam, special exam when indicatedDiagnosis
Etiology and significanceprognosis
Treatment Plan Idealalternative
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Case History
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1. General Information
Name (address by name to add a personal touch)
Address & telephone number (contact)
Birth or age (capacity to withstand stress, healing, diseases)
Occupation (value on esthetic and quality of the denture, type of work, working schedule, financial status)
Sex (women on appearance, men on comfort & function)
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Personal & Social History Marital status
duration, number of children, etc Habits
Alcohol, oral habits, tobacco Personality
Moody, sociable, easygoing, complaining ,etc Weight
Recent loss or gain of weight
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2. Chief Complaint
A symptom or symptoms in the patient’s own words relating to the presence of an abnormal condition
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3. History of Present Illness
A chronological account of the chief complaint and associated symptoms from the time of onset to the time the history is taken
Include the date of onset of the chief complaint, type of onset, character, location, and relation to other activities
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4. Past Medical History
Patient’s general health prior to the onset of the present illnessMedical conditionsMedications
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Medical Conditions Directly affecting the Mouth
1. Anemia- soreness of tongue and palate may occur- in severe cases, pallor & breathlessness
2. Stroke- may lead to loss of use of muscles of the face
3. Arthritic disease- rheumatoid arthritis or osteoarthritis may rarely affect the TMJ- special trays are needed if unable to open mouth wide, jaw relation recording may be difficult
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Medical Conditions Directly affecting the Mouth
4. Diabetes- more susceptible to infection- healing maybe slower- rate of bone resorption may increase
5. Epilepsy & Blackouts- danger of fracture of denture
6. Parkinson’s disease- loss of muscular coordination
7. Allergies - hypersensitivity to materials
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Medical Conditions Directly affecting the Mouth
8. Cardiovascular diseases and disorders- short appointments with premedications (history of angina & heart attack)- antibiotic prophylaxis - increased blood pressure is not contraindicated if under medication
9. Transmissible diseases- diseases can be transmitted from patient to dentist and laboratory personnel- tuberculosis, AIDS, hepatitis, herpes, SARS
10. Psychological disorders- anxiety, depression or hysteria might be difficult patients
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Drugs Adversely Affecting CD
1. Steroids- suppress the inflammatory reaction- retard healing of mucosa after trauma- osteoporosis of jaw bones is likely- dryness of mouth- confusion- behavioral changes
2. Antidepressants- some supress salivary secretions
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Drugs Adversely Affecting CD
3. Diuretics
- dryness of mouth
- change in the shape of the mucosa
4. Immunosuppressants
- mucosa is slow to heal
5. Anti-hypertensive
- dry mouth
- postural hypertension
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Drugs Adversely Affecting CD
6. Anticoagulants
- important considerations when preprosthetic surgery or deep scaling is planned.
7. Antiparkinsonism
- dryness of skin and mucosa
- confusion
- behavioral changes
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Mental Health / Attitude
House’s Classification of Patients
Type of patient
Attitude Principal Characteristics
Prognosis
Philosophical trusting Accepts advise good
Exacting / critical
doubting Gives advise to surgeon
Fair/poor
Hysterical / Skeptical
demanding Unpleasant past experience
poor
Indifferent unconcerned Sent by relatives
fair
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5. Past Dental History Etiology of tooth loss Previous denture Existing denture
- degree of wear- cleanliness- type of denture- retention & stability- occlusion- fit
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6. Family History
General health of the familyHistory of mental diseaseCause of death of parent if deceasedDiseases in the family
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7. Systems Review
Head-headache, eyes, ears, nose, throatCardiorespiratory-chest pains, rheumatic
fever, dyspneaGastrointestinal-sore tongue, nausea &
vomiting, diarrheaGenitourinary-polyuria, edema,menopauseNeuromuscular-paresthesia, arthritis,
paralysis, tremors
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CLINICAL EXAMINATION
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EXTRAORALEXAMINATION
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Extraoral Observations
AppearanceBearing and mannerGaitFacial color, sweating, ticsAny obvious swelling or disproportion of
faceWearing eyeglasses, hearing aids
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Frontal Face Form Classification (Outline of the Face)
According to House, Frush, Fisher
a. Square
b. Tapering
c. Ovoid
d. Combinations (square tapering, tapering ovoid)
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Lateral Face Form Classification
According to Angle Class I – Normal Class II – Retrognathic Class III - Prognathic
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Lips Classification Lip Length ( long, medium,
short) Lip Thickness (thin or thick) Lip mobility
Class I normal Class II reduced mobility Class III paralysis
Smile or Lip line (High lip line, low lip line, normal)
Lip support (adequate or inadequate)
Competent or incompetent
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Neuromuscular Coordination Classification
Ability to perform various mandibular movementsClass I – excelentClass II – fairClass III - poor
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TMJ
Pain or difficulty in mouth openingUncoordinated jerky movementsTenderness, clicking or crepitus
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INTRAORALEXAMINATION
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Mucous Membrane
ColorFirmnessPainful areaThickness
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Cheek
Essential for peripheral seal due to placement of tissues over the buccal flanges of the denture
Commonly seen lesions1. lichen planus2. Submucosal fibrosis3. White lesions4. Malignancies
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Tongue Size Class I - Normal Class II – edentulism permit
change in form & function Class III - Excessively large
tongue make construction difficult tongue biting Management
Occlusal plane lowered Use narrower teeth Intermolar distance increase Grind off lingual cusps Avoid setting a second molar
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Tongue Position Classification Normal
fills floor of the mouth lateral borders rest at occlusal plane while
dorsum above it apex rests at or slightly below incisal
edges Class I retracted
Floor expose till molar area Lateral borders raised above occlusal
plane Apex pulled down into the floor of the
mouth Class II retracted
Tongue retruded backward and upward Lateral borders raised above occlusal
plane Apex pulled into the body of tongue and
almost invisible Floor of mouth
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Frenal Attachment Classification
Class I – sulcal or low attachment
Class II – attaches midway between the sulcus and crest of the ridge
Class III – crestal or near crestal (high) attachment
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Floor of the Mouth
Near or at level of the ridge crest
Hyperactive floor Ridge resorption so
great that the floor of the mouth in the sublingual gland and mylohyoid region spill onto the ridge
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Maxillary Tuberosity
Enlarged Back end of occlusal
plane may be placed too low
Not enough space to set all molars
Undercut (unilateral or bilateral) Denture insertion and
removal difficult and painful
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Hard Palate Classification
Class I – U shaped Most favorable for retention &
stability Class II – V shaped
Not very favorable Slight movement will break
seal and cause loss of retention
Associated with tapered arch Class III – Flat or Shallow
vault Not very favorable Poor resistance to lateral
forces
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Soft Palate Classification
Determines the extent of additional area available for retention as well as the width of the posterior palatal seal area
Class I – almost horizontal Class II – slope about 45
degrees from the hard palate
Class III – slope about 70 degrees from the hard palate
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Arch Size & Form Classification
Arch Size Class I – Large Class II - Average Class III - Small
Arch Form Class I - Square Class II - Tapered Class III - Ovoid
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Arch Relationship Classification
Anterior Class I Class II Class III
Posterior Class I Class II Class III
I – Orthoggnathic II- Retrognathic III - Prognathic
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Interarch Space
Class I - Normal Class II - Excessive
Associated with highly resorbed ridge
Class III - Insufficient Setting difficult, each
tooth might be ground to fit space
Associated with large ridge
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Residual Ridge Classification Class I
Residual bone height of >21mm measured at the least vertical height of the mandible
Class I maxillomandibular relationship Class II
Residual bone height of 16-20mm Class I maxillomandibular relationship
Class III Residual bone height of 11-15mm Class I, II, III maxillomandibular relationship
Class IV Residual bone height of <10mm Class I,II, III maxillomandibular relationship
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Undercuts Unilateral or bilateral Labial or lingual / anterior or
posterior Mild, moderate or severe
* Isolated anterior undercut pose no problem
* Relieved inside portion of the denture
* Unilateral posterior undercut, change path of insertion
* Bilateral undercut, relieve or surgically removed one
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Saliva
ConsistencyThin serous (favorable for denture retention)Thick mucus (tends to displace denture)Mixed (contains both)
AmountClass I - Normal (ideal for denture retention)Class II - Excessive (makes construction
difficult & messy)Class III – Reduced/ Xerostomia (reduced
retention, increase tissue soreness)
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DIAGNOSIS AND
TREATMENT PLAN
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Diagnosis - Etiology and significance - Prognosis - good, fair, poor
Treatment Plan - Ideal - Alternative
Fees and Signed Consent - Fees fair to both dentist and the patient - Signed consent essential to prevent later misunderstanding
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Surgical and Non-Surgical Mouth Preparation
for complete dentures
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NON-SURGICALMETHODS
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1.Rest for the Denture Supporting Tissues
Removal of denture for extended period
Use of temporary soft liner (for several days)
Regular finger or toothbrush of denture bearing mucosa, especially the edematous and enlarged
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2. Occlusal Correction of the Old Prosthesis
To restore vertical dimension using interim resilient lining material
Correction of the extent of the tissue coverage
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3. Good Nutrition
Eat a variety of foodBuild diet around complex carbohydrates: fruits,
vegetables, whole grains and cerealsEat at least five servings of fruits and vegetables
dailySelect fish, poultry, lean meat, or dried peas and
beans every dayObtain adequate calciumLimit intake of bakery products high in fat and
simple sugarsLimit intake of process foods high in sodium and fatConsume 8 glasses of water daily
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Oral Signs of Nutrient Deficiencies
Nutrients Oral Symptoms
Proteins Decreased salivary flowEnlarged parotid glands
Vitamin B Complex, iron, protein
Lips Cheilosis Angular stomatities Angular scars InflammationTongue Edema Magenta tongue Atrophy of filiform papillae Burning sensation Soreness Pale, bald
Vitamin C Edematous oral mucosaGingiva tender, red and spongySpontaneous bleeding
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4. Conditioning of Patient’s Musculature
Use of jaw exercises can permit relaxation of the muscles of mastication and strengthen their coordination
Eg. Stretch relax exercises
- open wide, relax
- move to the left, relax
- move to the right, relax
- move forward, relax
* do it 4x in each, 4 sessions a day
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SURGICAL METHODS(PRE-PROSTHETIC SURGERY)
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Definition:Surgical procedures designed to facilitate fabrication or to improve the prognosis
of prosthodontic care
Classification:1. Related to the development of a retentive denture
2. Related to the provision of a stable denture
3. Those which will allow the establishment of a correct vertical dimension
Surgical procedures included are4. Improve the bony foundation
5. Improve the soft tissue foundation
6. Improve ridge relationship
7. Implant procedures
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1. Procedures to Improve Bony Foundation
Unerupted teeth or retained roots Removal of cysts or tumors Removal of alveolar excess
Alveoloplasty, tuberosity reduction, sharp and irregular ridges, genial tubercle reduction or reattachment, removal of torus and exostoses and alveolar repositioning
Techniques to deal with excessive resorption Overlay dentures, ridge augmentation, vestibuloplasty,
lowering the mental foramen
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Torus mandibularies
Prevent proper extension of the denture base
Border seal cannot be made
Soreness can occur due to thin tissues
Fracture of the denture base
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Torus Palatinus
Affect denture stability May cause sore spot Interfere with tongue
function Affects post-damming May fracture denture
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Indications for Removal of Torus
1. Extremely large torus that prevents the formation of an adequately extended and stable denture
2. Traps food debris due to undercuts causing chronic inflammatory conditions
3. Torus that extends past the junction of the hard and soft palate (prevents formation of posterior palatal seal)
4. Patient concern (cancerophobia)
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Bony Exostosis
Creates discomfort
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Genial tubercle
Creates discomfort causing displacement
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Pressure in mental foramen
Present in extreme mandibular resorption, causing pain
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Vestibuloplasty
Increases the vertical extension of the denture flanges
Reposition muscle attachment from crest of the ridge
Anterior Sulcus slide
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Ridge Augmentation
Increase bulk of the ridge Eg. Onlay grafts from iliac, ribs
Particulate bone and marrow Hydroxyappatite crystals
(nonresorbable & nonosteogenic) Tricalcium phosphate
(resorbable & osteogenic) Visor or vertical osteotomy horizontal or sandwich osteotomy
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Ridge Augmentation(Hydroxyappatite)
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2. Procedures to Improve Soft Tissue Foundation
Excision or sclerosing hypermobile tissueEpulis fissuratumPapillary palatal hyperplasia using
electrosurgery or microbrasionHyperplastic maxillary tuberosity FrenectomyBenign soft tissue lesions, such as
papilloma, mucocele fibroma, etc
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Hyperplastic ridge
Interfere with optimal seating of the denture Affects denture stability
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Epulis fissuratum
Interfere with optimal seating of the denture
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Papillomatosis
Harbors microorgaisms
Removal using electrosurgery or microbrasion
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Frenular Attachment ( Close to the Ridge Crest)
Difficult to obtain ideal extension Affects peripheral seal
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Pendulous fibrous maxillary tuberosities
Encroachment or obliteration of interarch space
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3. Procedures to Improve Ridge Relationship
Maxillary advancement procedures
Maxillary retrusion procedures
Mandibular advancement procedures
Mandibular retrusion procedures
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Discrepancies in jaw size
Places considerable stress and unfavorable leverages on the basal seat
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4. Dental Implants