Before we understand what subgingival calculus is let us first know what the word calculus means in dentistry. Calculus is the mineralized bacterial plaque that is formed on the surface of the natural teeth and on the dentures or dental prosthesis. Depending upon the location of the calculus in relation to the gingival margin, weather [...]
Continue reading …Dentinogenesis imperfecta is a hereditary defect of dentin that involves both the primary as well as the permanent dentition. The disease occurs in several forms and the three most common among them are: Type I dentinogenesis imperfecta, Type II dentinogenesis imperfecta, and Type III dentinogenesis imperfecta. The type I Dentinogenesis imperfecta is often associated with [...]
Continue reading …Amelogenesis imperfecta is a hereditary defect of tooth and is not associated with any other generalized defects. Since it is absolutely an ectodermal disorder, the mesodermal structures of the tooth like; dentin and pulp, etc. are always normal in this disease. Generally amelogenesis imperfecta is of three types: Hypoplastic type Hypocalcification type Hypomaturation type. Hypoplastic [...]
Continue reading …During the process of enamel formation, the ameloblast cells are susceptible to many external factors, the effects of which are reflected on the erupted tooth surface in the later life. Quantitatively defective enamel having normal thickness is called Enamel hypoplasia, while qualitatively defective enamel having normal thickness is known as enamel hypocalcification. Enamel hypoplasia actually [...]
Continue reading …The presence of any extra tooth in the dental arch, in addition to the normal series of teeth is called the Supernumerary teeth. The Supernumerary teeth develops either from a third tooth bud in the dental lamina or it may develop due to the splitting of a normal tooth bud during the initial stage of [...]
Continue reading …Macrodontia refers to teeth which are larger than the normal teeth when compared in size. In this type of developmental defect, the size of the tooth is very large when compared to a normal tooth. Sometimes people are mistaken in thinking that the size of the Jaw is smaller, hence the appearance. The Macrodontia has [...]
Continue reading …Microdontia refers to the occurrence of small sized teeth in the jaw. It is a developmental defect of the teeth in which the size of the tooth is considerably smaller than a normal tooth. Sometimes it appears as if the tooth is small and sometimes the Jaw appears to be small depending upon the origin [...]
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