Malfaifi, Author at Dr.Mohammed Alfaifi

Types of tooth wear

Attrition, abrasion, corrosion and abfraction revisited: A new perspective on tooth surface lesions Grippo et al 2004 The article presents a schema of the pathodynamic mechanisms in the formation of tooth surface lesions—three basic physical and chemical mechanisms, their interactions and their dental manifestations. Definitions of Lesions: Attrition: Tooth-to-tooth friction. Can have proximal attrition. Abrasion:

Worn dentition

Restoration of the extremely worn dentition Turner and Missirlian 1984 This article discusses the diagnostic evaluation, treatment planning, and modes of restorative treatment for patients who suffer from extreme occlusal wear. Etiology of tooth wear: Congenital anomalies: Amelogenesis Imperfecta: (hypoplastic, hypomaturation, hypocalcified). Dentinogenesis imperfect: is characterized by an amber-colored translucency of the denti- tion, and

Ferrule Design

Sorensen 1990 Ferrule design and fracture resistance of endodontically treated teeth Sorensen et al 1990 The term coined by Eissman, and he recommends to be 2 mm. To exam the effect of various ferrle designs on fracture resistance of endodontically treated anterior teeth. Material and methods 1) 60 intact maxillary central incisors were randomly assigned

Shortened Dental Arch

Limited Treatment Goals – Shortened Dental Arches Kayser 1994 Preservation of complete dental arches may be technically possible but should be weighed against limited treatment goals The anterior teeth and premolars are essential for life and therefore deserve the best preventive and restorative care. This is the core of the shortened dental arch concept. The compulsion

Smile aesthetics

Some esthetic factors in a smile Tjan et al 1984 The smile is one of the most important facial expressions and an esthetic smile can enhance an individual’s acceptance into society by improving initial impressions and interpersonal relationships. Beauty is not absolute, it is extremely subjective and can be dictated by cultural factors and individual

The golden proportion revisited

The Golden Proportion Revisited J. Preston 1993 In an attempt to seek mathematical assistance in developing dental esthetics, Levin advocated the use of the golden proportion for establishing tooth size and stated that “the perceived width of the maxillary central incisor is in golden proportion to the width of the lateral incisor” (1:0.618). Similarly he

Contemporary Impression Materials

A review of contemporary impression materials and techniques Donovan et al 2004 This article outlines the ideal properties of impression materials and explains the importance of critical manipulative variables. Available impression materials are analyzed relative to these variables, and several ‘‘specialized’’ impression techniques are described. Ideal properties 1.Elastic recovery: Elastomeric impression materials must be able to

CAMBRA

Caries risk assessment and management for the prosthodontic patient Featherstone et al 2011 CAMBRA stands for Caries Management by Risk Assessment Validated through a 3-year randomized clinical trial at the University of California, San Francisco The patient referred for prosthodontic care is often at high risk for caries. Prosthodontic procedures often leave patients at risk for

Ceramic materials and clinical recommendations

Current ceramic materials and systems with clinical recommendations: A systematic review Heather J. Conrad et al 2007 McLean pioneered the concept of adding Al2O3 to feldspathic porcelain to improve mechanical and physical properties. The first biomedical application of zirconia occurred in 1969. The first paper regarding the use of zirconia for the production of artificial

Heat-induced bone injury

Tremperature threshold levels for heat-induced bone injury: A vital-microscopic study in the rabbit Eriksson and Albrektsson 1983 Critical temperature is to be around 56° because alkaline phosphate denatured at this temperature level. Hard tissue changes after heating in the range of 47° to 50 c. The heating was performed about 10 weeks liter chamber insertion. Acute