Cystic fibrosis (CF) is the most common severe genetic disorder seen in Caucasians. Defective exocrine gland secretions result in chronic diseases of the respiratory and gastrointestinal systems. However, the CF gene recently has been located and cloned. Currently, genetic technology allows identification of sibling carriers and antenatal diagnosis within families. Oral implications associated ...

A 32-year-old male patient came to the department of oral medicine and radiology with a chief complaint of discoloured teeth in upper front tooth region since 2 years. He gave no history of pain and a history of fall 4 years ago. Past medical and dental history were noncontributory. Intraoral examination revealed yellowish discoloration of coronal aspect of left maxillary central incisor (Figur...

A three-dimensional obturation and complete coronal and apical seal is one the important aims of root canal treatment. Since microorganisms may remain in the root canal system after instrumentation, a tight apical seal is desired to prevent bacteria and their by-products from invading the apex. A perfect apical seal is also desired to prevent apical percolation. One of the major objectives of t...

Using modified USPHS criteria, we evaluated annually for ten years 91 cases restored with visible light cured posterior composite resin LFP (Base resin: UDMA; filler: micro crushed type, alumino-silicate, barium glass and silica, 85 wt%, 74 vol%). The 91 cases restored with LFP decreased to 68 in ten years. Of the 23 cases that were lost, one resulted from a pulpal reaction immediately followin...

This study was undertaken to determine the clinical and radiographic success of calcium hydroxide apexification in a group of 48 patients requiring endodontic therapy because of pulpal necrosis prior to root-end closure. The study examined tooth number, etiology of pulpal necrosis, age, sex, size of root-end opening, size of radiolucency, crown discoloration, interappointment symptoms, and tota...

An ideal endodontic sealer should have many properties such as excellent seal after setting, dimensional stability, slow setting time to ensure sufficient working time, insolubility to tissue fluids, adequate adhesion with canal walls and biocompatibility. Genotoxicity is one of the important factors that influence biocompatibility of an endodontic sealer. This literature review was conducted t...

The purpose of this in vitro study was to evaluate the color stability of two brands of porcelain teeth and three brands of acrylic denture teeth. Samples were immersed into three staining drinks as test groups and distilled water as a control. Color measurements of teeth were performed by using a spectrophotometer. Before immersion, the initial color value of each tooth was recorded. Color cha...

Vital teeth tend to present color changes that compromise esthetics substantially. These discolorations can be extrinsic or intrinsic according to the location and the cause of the stain. Many dentists have indicated the treatment of intrinsic discolorations with bleaching agents. Thanks to innovations in bleaching agents, tooth whitening has become more and more popular among dental profession...

normal pulp cavities exclude dentinogenesis imperfecta". In the dentine abnormalities that may be associated with osteogenesis imperfecta, the pulp chambers and root canals are either progessively obliterated by the continuous deposition of highly disorganised dentine, or the pulp chambers are larger than normal by a failure of deposition. It is not possible to ascertain whether or not the pulp...

The purpose of this study was to investigate the incidence and location of tooth developmental disorders (mainly enamel hypoplasia and discolored teeth) which are often seen in premature babies. The subjects were 52 infants from two to five years of age with complete deciduous den tition (32 AFD and 20 SFD babies). Enamel hypoplasia was seen in 26.97O and discolored teeth in 1.97O. The incidenc...