Lecture 7 & 8: Jaw Relations PDF

HOW MANY APPOINTMENTS NEEDED Lecture 7: 9/2/21 TO DELIVER A COMPLETE DENTURE: Uses of Occlusion Rims. Wax forms are used to establish: For a clinician. 1. The level of occlusal plane I. Ora...

HOW MANY APPOINTMENTS NEEDED Lecture 7: 9/2/21 TO DELIVER A COMPLETE DENTURE: Uses of Occlusion Rims. Wax forms are used to establish: For a clinician. 1. The level of occlusal plane I. Oral diagnosis for charting and prostho dept Frontal view- Incisal plane parallel to (for approval) + prelim impression + diag the interpupillary line (fox plane) cast ○ Yung sa eye part- II. : Final impression of px + master cast interpupillary line or fox III. : After making a wax pattern, denture base plane. ,Fitting to the patient. ○ Yung naka insert sa mouth IV. Occlusion rims + horizontal, vertical -fox plane guide,boomerang occlusion like. V. Setting, setting of teeth, try-in, posterior setting VI. Recall for wax denture try in. Check ant and post bite ,pestoon. VII. Recall for delivery ,Adjust the bite if retentive. NOTE: 7 APPOINTMENTS (varies) Sagittal/ Proximal view- occlusal Wax denture fitting plane parallel to the ala Trim and polish (nose)-tragus (ear) line. Recall for delivery Fox plane guide should be parallel deliver= adjust teeth, bite, retentive or not + when you look at the side, from the ayusin problems ala of the nose, tragus of the ear Recall again For a practitioner. I. Prelim impression and oral exam II. Fabricate custom tray and recall for final impression III. Record base and occlusal rim IV. Wax denture try in- has teeth ant and post ○ Set the artificial teeth in a upper and lower; let the patient observe and position as close as possible adjust accdg to patients’ request to the on previously occupied V. Delivery of denture 2. The arch form ○ Depends on the ridge of the patient ○ Determine how much bulk you give the patient in terms of mesiolabial fold. ○ Related to the activity of the lips, cheeks and tongue and harmonious with the various forces acting on it 19  It must respect the oral Lecture 8 : 9/14/21 physiology of every individual JAW RELATIONS FOR COMPLETELY as it differs from each one. EDENTULOUS PATIENTS. ○ Vertical Relation - how high at rest, how big is the space between upper There are Distinct Differences Between Natural and lower at rest; move forward Dentition and Complete Denture Occlusion: background,left and right Natural teeth are suspended in the bone by ○ Horizontal Relation - movement of the PDL which acts as a shock absorber the jaw when you move Denture teeth are part of the denture base forward,backward,left and right. which rests on movable/displaceable tissues The Axes of Mandibular Movement. ○ Basal seat- area where denture rest. Horizontal Axis Palate alveolar bone , all ○ Imagine that the mandible is on a over mucosa, maxillary horizontal plane, meaning the tuberosity, vestibule, buccal movement of the mandible would be shelf and Retromolar pad along the Y-axis (imagine chewing). Premature deflective contacts between ○ Rotation artificial teeth cause movement of the ○ Movement of mandible:up and down denture resulting in damage to the Vertical Axis supporting tissues ○ Movement of mandible:left and right ○ Causes of denture to dislodge: movement of the mandible. Occlusion ,movement of the ○ Pole dancer tongue, movement of jaw and Air Sagittal Plane ○ Imagine nakahang sa pole, a fusion of both Y and X-axis. ○ Movement of mandible:Rotation ○ TARZAN hanging with one arm ○ Lechon Goals of Complete Denture Occlusal. Limit trauma to the supporting structures Preserve remaining structures Enhance stability of the denture Restore esthetics, speech and mastication Jaw Relationships. Relation of one jaw with the other jaw or another reference or landmark ○ Orientation relation - pertains to the position of mandible relative to NOTE:If we failed to get this , denture can be maxilla on how far it is, how high is dislodge or the patient may have a problem in TMJ it, etc. (iatrogenic injury) caused by the dentist. 22