SINCE the introduction of faster operating speeds for rotating instruments, there has been an increased concern regarding the effects of various instruments on the cut tooth surface. Very little information on this subject exists in the literature. The work of Street' describing the effects of instruments on enamel walls represents the most complete report in the current literature. It is the p...

Caries can be controlled by the early treatment of the carious lesion, by alteration of conditions upon the tooth surface and by dietary means during the period of tooth formation. The incidence of dental caries is influenced by a large number of factors. After the teeth have erupted, local conditions on the surface of the teeth have the greatest influence, but tooth structure is of considerabl...

Based on the comprehensive analysis of previous research about the spiral bevel and hypoid gear, principle of forming spherical involute tooth surface was proposed with the spherical involute that was new theory applied in the field of their modeling. According to precise shape of tooth surfaces, each part of the quick and accurate derivations of the basic parametric equation of the tooth profi...

The metabolic activity in dental plaque, the biofilm at the tooth surface, is the driving force behind any loss of mineral from the tooth or cavity surface. The symptoms of the process (the lesion) reflect this activity and can be modified by altering the biofilm, most conveniently by disturbing it by brushing with a fluoride-containing toothpaste. The role of operative dentistry in caries mana...

conclusions consequently, this study shows promising results for il of single implants, and it can be considerable that treatment with microtextured surface implants is a predictable and appropriate method of treatment. background the immediate loading (il) protocol has gained increased popularity among surgeons in the last decade. objectives this study aimed to evaluate the clinical performanc...

Our aim was to predict tooth surface loss in individuals without the need to conduct clinical examinations. Artificial neural networks (ANNs) were used to construct a mathematical model. Input data consisted of age, smoker status, type of tooth brush, brushing, and consumption of pickled food, fizzy drinks, orange, apple, lemon, and dried seeds. Output data were the sum of tooth surface loss sc...

PURPOSE The aim of this study was to evaluate and compare tooth surface characteristics in extracted human molars after cervical enamel projections (CEPs) were removed with the use of three rotating instruments. METHODS We classified 60 extracted molars due to periodontal lesion with CEPs into grade I, II, or III, according to the Masters and Hoskins' criteria. Each group contained 20 specime...

Introduction: The biggest challenge that orthodontist face in the clinical practice is debonding of the brackets. The best way to avoid bond failure is to adhere strictly to the rules of good bonding. Aims and Objectives: Aims and objectives of the study were to measure shear bond strength of orthodontic brackets which were rebonded using different tooth surface reconditioning methods that are ...

OBJECTIVES The maintenance of the healthy periodontal ligament cells of the root surface of donor tooth and intimate surface contact between the donor tooth and the recipient bone are the key factors for successful tooth transplantation. In order to achieve these purposes, a duplicated donor tooth model can be utilized to reduce the extra-oral time using the computer-aided rapid prototyping (CA...

Avulsion injuries deal with exarticulation or total luxation of the tooth out of its socket as a result of a blunt impact on the tooth due to contact sports, road accidents or fights which leads to severance of the neurovascular pulpal supply, separation of the PDL and exposure of the root surface (oral/extra-oral environment contaminated with microorganisms) [1,2]. The success of a replanted t...