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Mandibular-Anatomic Landmarks Retromylohyoid space – lies at the distal end of the alveolingual sulcus. 10. Forces which will make a complete denture retentive have been described as (a) physiological forces and, (b) physical forces. EDENTULOUS ANATOMY In order to properly construct a denture, one must understand the anatomy and physiology of the edentulous patient. Tongue Intrinsic Muscles -originate and insert within the tongue. Incisive papilla – Is a pad of fibrous connective tissue overlying the orifice of the nasopalatine canal . Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Mandible-Anatomic Landmarks External Oblique Line – a ridge of dense bone from the mental foramen, coursing superiorly and distally to become continuous with the anterior region of the ramus. The functional anatomy of the denture foundation areas of the maxilla and mandible is presented in detail – in particular, the relationship of these anatomic structures that impact retention, stability and support. 6. Introduction. Anatomical Landmarks for Complete Dentures. Myology Muscles of Facial Expression – Generally do not insert in bone and need support from the teeth and denture flanges for proper function. Orig. "Lec 100 - Delivery of Complete Denture - Part 2" The stripping method of occlusal equilibration in the lab prior to delivery of the new denture to the patient. dictates the length and thickness of the labial flange extension of the lower denture. Heat-activated acrylic resin is used to fabricate both the denture teeth and base. This part of the process may take up to eight hours. Complete dentures are full-coverage oral prosthetic devices that replace a complete arch of missing teeth. Removable complete denture; Fixed complete denture; It has Three surfaces. Flange. with severe ridge resorption the geniotubercles may cause discomfort if they are exposed to the denture base. The exact process and fitting time for a denture like this will vary depending on your circumstances. 1. The impression surface may appear irregular as the glandular secretions will adhere to the impression material. 35. Both the maxillary and mandibular casts are indexed by placing grooves or notches in the base of the cast. Midline palatal suture- extends from the incisive papilla to the distal end of the hard palate. Access is determined by the attachment of the buccinator. If you wish to opt out, please close your SlideShare account. Anatomy of the Denture Foundation Areas Eleni Roumanas, DDS Division of Advanced Prosthodontics, Biomaterials and Hospital Dentistry UCLA School of Dentistry and Frank Lauciello DDS Ivoclar Vivadent This program of instruction is protected by copyright ©. Clipping is a handy way to collect important slides you want to go back to later. Part of the base that extends over attached mucosa from cervical margin to border of denture. Hard palate- consists of the two horizontal palatine processes and appears to resist resorption. Lec 102 - Delivery of Complete Denture - Part 1 "Lec 102 - Delivery of Complete Denture - Part 1" This video demonstrates the manipulative skills in delivery of the dentures and also the dentist's chairside manner in fitting and delivering the dentures. Gravity. The stages for a standard complete denture are as follows: Primary impressions. If you continue browsing the site, you agree to the use of cookies on this website. Mandible-Anatomic Landmarks Labial vestibule Labial vestibule – limited inferiorly by the mentallis muscle, internally by the residual ridge and labially by the lip. Buccal Frenum Buccal Frenum Alveolar Ridge. Terminology• Prosthodontics: the branch of dentistry that deals with the replacement missing dental ,oral and craniofacial structure.• Prosthesis: an artificial replacement of an absent part of the human body. Buccal Shelf, 20. A thorough knowledge of the anatomy of the denture bearing surfaces is paramount to designing and fabricating functional dentures. The configuration of a high palate is not conducive to the stability and support of a denture due to the inclined planes. In pts. 30. Coronoid process Maxilla-Anatomic Landmarks Fovea palatina Coronoid process – the patient is allowed to open wide, protrude and go into lateral movements. The stripping method of occlusal equilibration in the lab prior to delivery of the new denture to the patient. Suprahyoid Muscles Function in elevation of the hyoid bone and the larynx and depression of the mandible. Posterior Palatal Seal Area – Is distal to the junction of the hard and soft palate at the vibrating line . Myology Muscles of Facial Expression -Generally do not insert in bone and need support from the teeth for proper function. Is the attachment site of the buccinator muscle and an anatomic guide for the lateral termination of the buccal flange of the mandibular denture . Modiolus Mentalis Buccinator Orbicularis Oris Incisivus Labii Superiorus & Inferiorus Modiolus – situated laterally and slightly superiorly to the corner of the mouth is a concentration of many fibers of this muscle group. 28. An ill-fitting complete denture may cause various lesions on mucosa and inflammatory overgrowth could appear, so, reparing, relining or rebasing the denture will certainly resolve the problem. 13. Complete Dentures» [fbcomments] ANATOMY OF THE DENTURE FOUNDATION AREAS – COURSE TRANSCRIPT. Major palatine foramen- the orifice of the anterior palatine nerve and blood vessels . Modiolus Buccinator Mentalis Incisivus Labii Superiorus &Inferiorus Orbicularis Oris Mentalis – elevates the skin of the chin and turns the lower lip outward. Key Concepts in Prosthodontics Retention : Resistance to vertical displacement away from the bearing surfaces Stability : Resistance to lateral displacement Support : Factors of the bearing surfaces that absorb or resist forces of occlusion When the key anatomic landmarks and their role with respect to retention, stability, support, preservation and esthetics are mastered, dentures can be fabricated as integral parts of each patient’s oral cavity and not just mechanical artificial substitutes. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Ideal Maxillary Ridge Abundant keratinized attached tissue Square arch U-shaped in cross-section Moderate palatal vault Absence of undercuts Frenal attachments distal from crestal ridges as much as possible Well defined hamular notches. Mandible-Anatomic Landmarks Mental Foramen – the anterior exit of the mandibular canal and the inferior alveolar nerve. Similar to taking them for a partial denture, except this will involve using a different type of tray to accommodate the fact that there are no teeth. Currently no uniform method is used for selecting and prescribing denture teeth and associated materials for complete denture prosthetic restorations. The denture should be relieved over this area. See our User Agreement and Privacy Policy. Buccal vestibule -when properly filled with the denture flange greatly enhances stability and retention . Fovea palatina – usually two, slightly posterior to the junction of the hard and soft palates. As of this date, Scribd will manage your SlideShare account and any content you may have on SlideShare, and Scribd's General Terms of Use and Privacy Policy will apply. There are three main parts to a dental implant: 1. 34. Buccinator – provides support and mobility of the soft tissues of the cheek. Match. Ideal Mandibular Ridge Well defined retromolar pad Blunt mylohyoid ridge Deep retromylohyoid space Low frenum attachments Absence of undercuts Abundant attached keratinized mucosa Adequate alveolar height, 32. Post. 36. Dictates the length and thickness of the labial flange extension of the lower denture. Encajonamiento de la Impresion y Vaciar el Modelo, 15. conceptos de oclusion esquemas oclusales. Complete dentures consist of two main parts, namely the artificial teeth and the denture base. Arises from the mylohyoid ridge of the mandible. Produce changes in the shape of the tongue Extrinsic Muscles -originate in structures outside the tongue and can move the tongue and alter its shape Genioglossus Styloglossus Hyoglossus Palatoglossus *** The denture flanges must be contoured to allow the tongue to have its normal range of functional movements. Two types of dentures are available -- complete and partial dentures. FFOFR is a tax-exempt public charity under 501 (3)(c), Foundation for Oral-facial Rehabilitation, Complete Dentures – Record Base and Wax Rim Fabrication, Removable Partial Dentures – Retainers, Clasp Assemblies and Indirect Retainers, Complete Dentures – Anatomy of the Denture Foundation Areas, Removable Partial Dentures – Surveyed Crown & Combined Fixed RPD’s, Fixed Prosthodontics – Tooth preparation guidelines for complete coverage metal crowns, Complete Dentures – Maxillo-Mandibular Relation Records, 8. Partial Vs Complete Dentures: The Key Differences. Using Digital Technology for Complete Dentures. Parts of a complete denture Denture base: the denture base forms the foundation of a denture, it helps to distribute and transmit all the forces acting on the denture teeth to the basal tissue. 2. High frenum attachments will compromise denture retention and may require surgical excision (frenectomy). MENTALIS MUSCLE Origin – crest of ridge Insertion – chin Action – raises the lower lip, 17. Insurance coverage for complete dentures. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The pterygomandibular ligament attaches to the pterygoid hamulus which is a thin curved process at the terminal end of the medial pterygoid plate of the sphenoid bone. External Oblique Line. Dental plans frequently do provide benefits toward the cost of full dentures. It is a very forceful area which can influence the labial flange thickness of the maxillary denture. However, the mucosal coverage is usually very thin and although the bone is in good position for stress bearing, the mucosa is not considered desirable for this purpose (thin mucosa). Arch, two sets of impressions are taken the inclined planes support area cheek biting create an effective for... Guide, and to provide you with relevant advertising tongues are abnormal in either,! 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