Diagnosis and treatment planning in complete dentures
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Transcript of Diagnosis and treatment planning in complete dentures
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ByDr. Muhammad AfzalRegistrar
DIAGNOSIS AND TREATMENT
PLANNING FOR COMPLETE DENTURES
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“The dentist should meet the mind of the patient before he meets the mouth of the patient”
De Van - 1942
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DIAGNOSIS
Familiarity with the patient
Principles of perception
Detection
Discrimination
Recognition
Identification
Judgement
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SOCIAL INFORMATION
Name. Age. Sex. Religion and race. Occupation. Address. Telephone number. Marital Status. Previous dental or denture experience.
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MEDICAL STATUS
Medical history. Family history. Dental history.
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CONDITIONS OF DEBILITATING NATURE
Senility
Diabetes
Tuberculosis
Joint diseases
Blood dyscrasias
Endocrine disorders
Menopause
High basal metabolic rate
Grand climacteric. In which there is
generalized loss of bone through out the body.
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DENTAL HISTORY
How many dentures?
How long worn?
Age of present set?
Satisfaction with dentures?
Things patient likes - what they want changed
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MENTAL HEALTH
A denture always fits better in the mouth of a satisfied patient
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MENTAL HEALTH
Alan Mack classified individuals according to their mental attitude.
Ectomorph(Worrying type).
Endomorph(Care free).
Mesomorph(Passive).
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MENTAL HEALTH
House divided the mental attitude into 4 major groups
Philosophic or Reasonable
Indifferent or passive
Critical or Exacting
Skeptical or Antagonistic
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PHILOSOPHIC OR REASONABLE
These are normal ideal.
They understand the limitations of an artificial prosthesis.
They are ready to play their role in the perseverance and learning phase.
They do not unnecessarily criticize the operator.
They correctly interpret their problems neither overstating nor under expressing.
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INDIFFERENT OR PASSIVE
Patient shows no concern. They are not interested and lack motivation.
Pays no attention to the instructions.
They are non cooperative.
They seek prosthesis at the request of family members or at the advice of the physician.
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CRITICAL OR EXACTING
The patient is methodical, precise and accurate.
At time he is more demanding.
Can be managed if handled properly.
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SKEPTICAL OR ANTAGONISTIC /HYSTERICAL
Emotionally unstable.
Excitable, hypertensive.
Grumbling even with little things.
Patients having family problems or psychological disturbances usually fall into this category.
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GENERAL EXAMINATION
General health and constitution
Cardiovascular System Disturbances
Blood pressure, Angina, Infarction, Rheumatic fever
Respiratory System Diseases
Tuberculosis, Asthma, Dyspnoea, Edema
Gastrointestinal Tract Disturbances
Ulcers, Jaundice, Nausea, Vomiting, Diarrhea, Constipation, Cirrhosis
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GENERAL EXAMINATION
Endocrine Disturbances
Diabetes , Steroids
Hematopoetic Disorders
Anemia, Bleeding disorders
Neurological Disturbances
Epilepsy, Convulsions, Paralysis, Psychiatric treatments,, Tranqulizers.
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LOCAL EXAMINATION
Visual examination
Physical examination
Digital examination
Conditions of occlusion
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VISUAL EXAMINATION
Oral Cavity
Inflammation, Growth, Cysts, White lesions
Character of Enamel
Rampant caries, Abrasion, Attrition, Erosion, Abfraction
Periodontal Conditions
Gingiva, Pockets, Tooth mobility
Oral Hygiene habits
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CAUSES OF TOOTH LOSS
Periodontal disease
Caries
Trauma
Orthodontic indications
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CONSEQUENCES OF TOOTH LOSS
Extra load on digestive organs
Impaired digestion
Systemic disturbances
General poor health
Impaired phonetics
TMJ Changes
Supra occlusion of opposing teeth
Tilting of adjoining teeth
Discomfort
Loss of confidence
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DIGITAL EXAMINATION
Sharp bony spicules
Torus palatinus
Mid-palatal suture
Torus mandibularis
Ridge form
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RADIOGRAPHIC EXAMINATION
BoneNature, Degree of calcification, Stress bearing quality.
PathologyCysts, Embedded roots, Unerupted teeth
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RADIOGRAPHIC EXAMINATION
Foci of infectionRemaining teeth, Number and length
of roots, Interproximal caries
Foraminae - exact position
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ANATOMY OF MAXILLARY DENTURE BEARING AREA
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MAXILLA
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EDENTULOUS MAXILLA
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EDENTULOUS MAXILLA
Foundation of denture bearing area:
Stress Bearing or supporting area
Peripheral or limiting area
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Supporting structures• Bone• Residual ridge• Mucous membrane
EDENTULOUS MAXILLA
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Supporting structures• Bone• Residual ridge• Mucous membrane
EDENTULOUS MAXILLA
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SUPPORTING STRUCTURES
Bone: Hard Palate:
PRIMARY SUPPORT AND STRESS BEARING AREA
Two maxillary and two palatine bones – Foundation for hard palate
Palatine process of two maxillae joined together at mid palatal suture.
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HARD PALATE
Incisive foramen
Greater Palatine foramen
Alveolar ridge
Palatine process of Maxilla
Palatine bone
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HARD PALATE
Mid Palatal suture
Buccal Frenum
Hard Palate
Maxillary tuberosity
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RESIDUAL RIDGE
Alveolar ridges after removal of natural teeth are called residual ridges
Size and shape changes. Rapid at first then reduced rate throughout life
SECONDARY SUPPORTING OR STRESS BEARING AREA
During 1st year of extraction, reduction of residual ridge in Maxilla in midsagittal plane is 2-3 mm.
After that, it is reduced to 0.1 to 0.2 mm per year.
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MUCOUS MEMBRANE
MUCOUS MEMBRANE
Mucosa
Connective tissueDense
Loose areolar tissue
Fat
MuscleGlandular
Transmit nerve and blood supply to mucosa
Stratified sqamous epithelium
Often Keratinized
Masticatory mucosa
Hard Palate Crest of residual ridgeResidual attached gingiva
Submucosa
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SHAPE OF SUPPORTING STRUCTURE
Various factors depend on the form and size of the supporting bone:
1. Original size and consistency
2. General health of person
3. Forces developed by the surrounding musculature
4. Extent of periodontal disease
5. Effect of wearing dental prosthesis
6. Surgery at the time of extraction
7. Span of being edentulous
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INFLUENCES ON SHAPE OF HARD PALATE AND RIDGE
Incisive Foramen
Maxillary tuberosity
Sharp Spiny processes
Torus Palatinus
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Limiting structures
EDENTULOUS MAXILLA
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Limiting structures• Labial Vestibule
• Labial frenum
• Buccal vestibule• Buccal frenum
• Vibrating line
EDENTULOUS MAXILLA
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LABIAL VESTIBULE
Divided into right and left by labial frenum
Labial frenum contains no muscles
Mucous membrane lining the Labial vestibule – thin mucosa.
Submucosa thick – loose areolar tissue and elastic fibers.
Lining mucosa
Orbicualris oris
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BUCCAL VESTIBULE
Lies opposite to tuberosity and extends from buccal frenum to hamular notch.
Buccal frenum – Levator anguli oris, Orbicularis oris (pulls frenum forward), Buccinator (pulls backward)
Distal to frenum lies root of zygoma.
Increasing resorption makes it prominent
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VIBRATING LINE
Imaginary line drawn on soft palate that marks beginning of motion of soft palate. Extends from one hamular notch to other.
Ahhh
Midline – 2 mm anterior or posterior to Fovea palatinae
Vibrating line always on soft palate
Anterior and posterior vibrating lines