Category: WIKI

Talon cusp

A talon cusp, also known as an “eagle’s talon”, is an extra cusp on an anterior tooth. The term refers to the same condition as dens evaginatus, but the talon cusp is the manifestation of dens evaginatus on anterior teeth. The incidence has been found to range from less than 1% to 6% of the […]

July 18, 2013 | 0 Comments More


The orofacial manifestations of thalassemia are numerous and intense, and are the result of bony changes occurring due to ineffective erythropoiesis, with the formation of a bone-expanding erythroid mass. Important malocclusions are observed as a consequence of severe maxillary protrusion, with the development of overbite and anterior open bite. The mandible is generally less protruded […]

July 15, 2013 | 0 Comments More

How to Detect Recurrent Decay

HOW TO DETECT RECURRENT DECAY Recurrent decay can be detected by looking for the subtle changes occurring in the coloration of the enamel surrounding the restoration.  Enamel is like opaque glass. You can’t see what’s on the other side, but you can see if it is brown or black. For the most part, darkened enamel […]

July 14, 2013 | 0 Comments More

Scurvy – Vitamin C Deficiency : Causes

 Scurvy – Vitamin C Deficiency  – Vitamin C is required for the synthesis of collagen in humans. – The chemical name for vitamin C is Ascorbic Acid. Causes: – Scurvy or subclinical scurvy is caused by the lack of vitamin C. In modern Western societies, scurvy is rarely present in adults, although infants and elderly […]

July 14, 2013 | 0 Comments More

Principles of tooth preparation

If there’s a missing tooth è Decay, overeruption, tilting, food impaction and gum diseases. Principles of tooth preparation: a-Biological consideration. b-Mechanical consideration. c-Esthetic consideration.   a-Biological Consideration: 1-damaging during tooth preparation – Prevention of damaging of adjacent tooth by a metal matrix, and proximal enamel of the tooth being prepared (lip or fin). – prevention […]

May 31, 2013 | 0 Comments More

Biological Testing of Dental Materials

In 1978, the working team 5 of the Federation Dentaire International (FDI), the Commission for Dental Materials, Instruments, Tools and Therapeutics (COMIET) – today’s The Commission for Dental Products, have agreed upon the document No. 198 which was published in the bulletin No. 204.  The bulletin describes recommended tests for evaluation of dental materials.  It […]

April 30, 2013 | 0 Comments More

What is Cusp

Cusp: Elevated portion mainly on occlusal surface of posterior teeth. Canine has one cusp so, called cuspid tooth. premolars has two cusps. So, called Bi-cuspid tooth. Cusp also present in molars.  

April 29, 2012 | 0 Comments More

Cingulum definition and importance

Definition of Cingulum : It is the lingual lobe of anterior tooth located in the cervical third of lingual surface. Importance : One of the morphological division crown Primary center of calcification

April 29, 2012 | 0 Comments More

Causes of failure of pit & fissure sealant

Causes of failure of pit & fissure sealant The Causes of failure of pit & fissure sealant are as following : 1) contamination by saliva 2) delayed mixing 3) delayed applying in the surface 4) vigorous mixing leading to formation bubble . 5) over extention 6) over dated sealant used

April 22, 2012 | 0 Comments More

Arbitrary Adjustment of Occlusion Rims

Arbitrary Adjustment of Occlusion Rims This arbitrary adjustment provides a ‘starting point’ for adjustments and should be fairly rapid. It should normally not take longer than 15 minutes per arch. 1. Maxillary Occlusion Rim Adjustment – The maxillary wax rim should be slightly facial to the ridge to compensate esthetically for facial resorption of the […]

April 22, 2012 | 0 Comments More
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