Author
Frank J. Schiesser
Bio: Frank J. Schiesser is an academic researcher from Temple University. The author has contributed to research in topics: Dentures & Neutral zone. The author has an hindex of 6, co-authored 6 publications receiving 372 citations.
Topics: Dentures, Neutral zone, Posterior teeth, Dental implant, Anterior teeth
Papers
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TL;DR: Positioning artificial teeth in the neutral zone achieves two objectives: first, the teeth will not interfere with the normal muscle function, and second, the forces exerted by the musculature against the dentures are more favorable for stability and retention.
Abstract: The neutral-zone philosophy is based upon the concept that for each individual patient, there exists within the denture space a specific area where the function of the musculature will not unseat the denture and where forces generated by the tongue are neutralized by the forces generated by the lips and cheeks. The influence of tooth position and flange contour on denture stability is equal to or greater than that of any other factor. We should not be dogmatic and insist that teeth be placed over the crest of the ridge, buccal or lingual to the ridge. Teeth should be placed as dictated by the musculature, and this will vary for different patients. Positioning artificial teeth in the neutral zone achieves two objectives. First, the teeth will not interfere with the normal muscle function, and second, the forces exerted by the musculature against the dentures are more favorable for stability and retention.
168 citations
TL;DR: Historical perspectives on the arrangement of denture teeth in the facial-lingual dimension and the contouring of complete denture polished surfaces are presented and a modern clinical technique is presented for the physiologic registration of dentures tooth positions and denture base contours.
Abstract: Providing complete denture therapy to patients with atrophic residual alveolar ridges is challenging. Because these patients suffer ongoing diminution of the denture foundation, modern approaches often involve dental implant therapy as a means of improving the denture foundation and supplementing the mechanics of prosthesis support, retention, and stability. Regardless of implant availability, physiologically optimal denture contours and physiologically appropriate denture tooth arrangement should be achieved to maximize prosthesis stability, comfort, and function for patients. This article presents historical perspectives on the arrangement of denture teeth in the facial-lingual dimension and the contouring of complete denture polished surfaces. Additionally, a modern clinical technique is presented for the physiologic registration of denture tooth positions and denture base contours. Information gained may then be incorporated into definitive prostheses in an effort to achieve successful complete denture therapy. (J Prosthet Dent 2009;101:405–412)
72 citations
44 citations
TL;DR: A technique has been described in which the form of the polished surfaces is developed in an impression paste at the try-in, and this form is carried through into the finished dentures.
Abstract: A technique has been described in which the form of the polished surfaces is developed in an impression paste at the try-in, and this form is carried through into the finished dentures. The polished surfaces of dentures are as important as the occlusal and impression surfaces in the construction of successful dentures. A method for determining the correct arch form and buccolingual position of the posterior teeth has been described. This position is called the neutral zone. A method of forming the contours of occlusion rims with soft modeling compound and establishing the vertical and centric relations by the swallowing method, and a procedure for developing and recording the smile line and the inclination of the anterior teeth has been described.
44 citations
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TL;DR: A prototype 3-D tooth arrangement program is described in this article that serves as an example of the type of program than can be used to arrange prosthetic teeth virtually as part of the overall CAD/CAM fabrication of complete dentures.
Abstract: The clinical impression procedures described in this article provide a method of recording the morphology of the intaglio and cameo surfaces of complete denture bases and also identify muscular and phonetic locations for the prosthetic teeth. When the CAD/CAM technology for fabricating complete dentures becomes commercially available, it will be possible to scan the denture base morphology and tooth positions recorded with this technique and import those data into a virtual tooth arrangement program where teeth can be articulated and then export the data to a milling device for the fabrication of the complete dentures. A prototype 3-D tooth arrangement program is described in this article that serves as an example of the type of program than can be used to arrange prosthetic teeth virtually as part of the overall CAD/CAM fabrication of complete dentures.
211 citations
TL;DR: Establishing optimal complete denture retention requires an understanding of the factors discussed andorporation of these determinants into the prosthesis through proper design and technique contributes to the success of complete dentures.
Abstract: Establishing optimal complete denture retention requires an understanding of the factors discussed. Incorporation of these determinants into the prosthesis through proper design and technique contributes to the success of complete dentures.
208 citations
TL;DR: The effect of the technical quality of complete dentures and the physical condition of the mouth on patients' satisfaction was investigated, and a moderately positive correlation was found between satisfaction of the patient and quality of the dentures.
Abstract: The effect of the technical quality of complete dentures and the physical condition of the mouth on patients' satisfaction was investigated in 130 patients who received new complete dentures A moderately positive correlation was found between satisfaction of the patient and quality of the dentures However, no correlation was found between the satisfaction of the patient and the physical condition of the mouth
198 citations
TL;DR: Dentists must base their technique on an understanding of the biologic aspects of the relationship between the denture base and supporting tissues, and anatomic regions that satisfy the requirements for providing primary support should make positive contact with the dentures under functional loading.
Abstract: Dentists must base their technique on an understanding of the biologic aspects of the relationship between the denture base and supporting tissues. Those tissues must be able to tolerate functional stresses without promoting patient discomfort and should be recorded in such a manner that these areas provide complete denture support. Anatomic regions that satisfy the requirements for providing primary support should make positive contact with the denture base under functional loading. Those that are less resistant to long-term changes or are unable to tolerate stress should be relieved of excessive contact with the denture base. Selection of those regions that should provide primary and secondary support depends on the anatomic variations unique to each patient.
141 citations
TL;DR: Mastication, comfort, and speech were determined and compared for patients using conventional complete dentures and dentures made with the neutral zone concept.
Abstract: Mastication, comfort, and speech were determined and compared for patients using conventional complete dentures and dentures made with the neutral zone concept.
72 citations