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Occasionally, absolutely healthy teeth are traumatized to the extent that they must be extracted. The use of cylindrical endosseous implants as single-tooth replacements is gaining acceptance. The case of a healthy young adult who suffered a traumatic injury that rendered his maxillary left central and lateral incisors nonrestorable is reviewed.
A simple technique to make children's prosthatic teeth with possibility of many sizes and form, stable shades, hard structure and fast work.
Dental esthetics has been based for a long time, on time-honoured theories where the restored or replaced teeth had to match the face shape while providing due respect to the sex, the age and the personality of the patient. Most of these theories have since been disproved and the standards of dental esthetics have been revised following surveys of naturally perfect smiles and patients' preferences. Guidelines are presented in a sequence of 5 easily applicable steps with the objective of creating the right smile for the right patient.
Single tooth replacement using an implant is a relatively new technique. During a study at Université de Montréal, the esthetic appearance of a single tooth restoration was directly related to the presurgical evaluation and to the implant placement. The goal of this article is to enumerate the clinical requirements and to illustrate the prosthetic results in relation to implant placement.
This article presents the use of single-tooth implants in the rehabilitation of a 17-year-old patient with congenitally missing teeth. Treatment options are discussed, and advantages of the use of osseointegrated fixtures in the rehabilitation of partial anodontia patients are presented. A dental team approach is advocated.
The Authors utilized in order to replace anterior missing teeth osseointegrated implants provided with individual angled posts. These types of abutment are used to allow a good parallel situation between implants with different angulation and also between implants and proximal teeth. The head of this abutment is thread to receive the screw that allows the crown to be fastened.
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The implantology has become more important in the last years. Often the dentist on the field of implantology has to treat patients of which the anatomic situation is not allowing an implantation in the jawbone. The presented paper will show possibilities to treat a wide range of cases with a special implantation system. Specially it will discuss by implanted examples the application of the Pitt-implant as an urgent-implant in difficult critical cases.
Plastic teeth are preferred as functional portions with acrylic denture base material. The resin teeth have become the integral part of the denture by their chemical bonding with the base. But several factors effect the bonding: faulty boil-out procedures, residual wax on ridge-laps of the teeth, careless application of tin-foil substitutes to the teeth. On the other hand, grinding the glossy ridge-lap surface, painting the teeth with monomer or a solvent, preparing retention grooves on the ridge-lap portion of the teeth effectively lock the teeth to the denture base. The purpose of this research was to evaluate the bond strengths of the acrylic resin teeth and denture base material with retention grooves on the ridge-lap portion of the teeth. As a result of this study, bond strength between resin teeth and the denture base material is increased by the mechanical retention applied on the ridge-lap portion of the teeth.
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The feeling of hardness, stickiness and the rate of cutting during the preparation of a tooth were compared using an extracted tooth, melamine resin and crystalline glass ceramics model tooth (Bioram M) which are used in dental education and practice. Diamond burs were used with an air-turbine handpiece in this experiment. The results indicated that Bioram M had the desirable characteristics of a model tooth and there was a strong resemblance feeling of cutting between Bioram M and a natural vital tooth.
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This article describes an expeditious method to aid in the selection of the combined width of the maxillary six anteriors. A measurement is made on the maxillary cast, from the crest of one pterygomaxillary notch straight across to that on the opposite side of the arch. This number, in millimeters, is used to search a tooth mould chart to find a mould, of the proper facial form, with this approximate combined width when measured laid flat. If the chart shows the measurement on the curve, 5 mm must be added to the notch measurement before referring to the chart. A mould close to this measurement or one that is either one size wider or narrower may be used, based on one's clinical judgement, and the desire of the patient. A survey of 50 consecutive clinical cases showed that when using the notch measurement method 78 percent of the selections were the same or within one mould size of that selected by other techniques. This method is not satisfactory in all situations and more time consuming procedures must then be used.
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