The use of teeth as abutments for fixed and removable partial dentures can result in biologically destructive consequences. Teeth adjacent to edentulous spaces should exhibit improved prognoses if restorative trauma is to be avoided or minimized. Implants offer a method of tooth replacement without relying upon the surrounding dentition for support. This investigation evaluates implant survival...

INTRODUCTION Inverted tooth impaction is a rare occurrence. Third molar impaction is the most extensively studied, and only eight cases of inverted third molars have been reported in a literature search of 40 years from 1973 to 2013. In a study, 43.4% of the premaxillary supernumeraries were inverted and 21.1% were transversely oriented, while occasional inverted central incisors have been ment...

Damage of high-strength bolt (DHSB) is inevitable during long-term use. Such damage irreversible that may not be replaced in time, and the potential danger proven by changes mechanical properties DHSB. To investigate DHSB, this paper uses software ABAQUS to simulate stress various types DHSB under earthquake, compares with undamaged bolts (UDHSB). The results show most unfavorable position crac...

tooth transplantation from one individual to another is a method of replacing missing teeth. this method can be used as an applicable clinical treatment technique due to its numerous advantages .there are different methods of tooth transplantation. among those, the safest and healthiest is transplantation of non-vital teeth or allostatic transplantation. in this method, the risk of antigenicity...

For patients who require removal of anterior teeth due to periodontal problems there are a multitude of treatment considerations. Using the natural tooth as a pontic offers the benefits of being the right size, shape and color. This paper describes the immediate replacement of an anterior tooth using a preimpregnated fiber-reinforced composite with the natural tooth as the pontic. The abutment ...

An implant-supported crown or conventionally fixed partial denture is the most common treatment modality to replace a missing anterior tooth but a more conservative approach, with a fiber reinforced composite resin FPD, can be used to replace a missing anterior tooth in young patients or when the patient does not agree for an implant, or conventional FPD or RPD therapy. It is an esthetic, conse...

Case description: In the first case, the patient was referred by an orthodontist for endodontic treatment of tooth 12, which was fused to 13. Surgical separation and later replacement of the involved elements in the dental arch was indicated. In the second case, the patient sought dental attendance due to spontaneous pain. In the radiographic exam, gemination in tooth 11 and fusion of 21 with a...

INTRODUCTION Gomphodonts are a clade of derived non-mammalian cynodonts characterized by the possession of transversely expanded postcanine teeth with crown-to-crown occlusion. These molar-like postcanines, characterized as ‘gomphodont’ teeth, are generally considered to be specialized for processing a predominantly herbivorous diet (Hopson 1971). If the contentious Tritylodontidae are omitted ...

UNLABELLED Tooth loss in adults is becoming less common, and the attitudes of patients and professionals towards it have changed dramatically over the last quarter of a century. This paper explores these changes, from the patient's perspective, in terms of psychological perspectives, aesthetics, function and the need or desire for tooth replacement. A second paper will examine the evidence avai...

Cell-based tissue repair of the tooth and - tooth-supporting - periodontal ligament (PDL) is a new attractive approach that complements traditional restorative or surgical techniques for replacement of injured or pathologically damaged tissues. In such therapeutic approaches, stem cells and/or progenitor cells are manipulated in vitro and administered to patients as living and dynamic biologica...