Developmental dental anomalies refer to deviation from the normal size, shape, number or structure of external and internal anatomy of a tooth. Their presence have functional and clinical significance. With no definite reason some dental anomalies may occur commonly in some specific teeth like microdontia in maxillary lateral incisors, dens invaginatus in maxillary lateral incisors, dens evagin...

Whenever the tooth dentin-pulp complex is affected by caries, attrition, erosion, chemicals and abrasion, pulpal response to these injuries can stimulate inflammatory activity. Although the pulp injury caused by these irritants can be important, in many cases the most severe tissue trauma is not a direct result of these environmental or accidental events, instead, it results from the surgical t...

Non-carious cervical lesion (NCCL) is the loss of hard dental tissue commonly observed at the buccal and labial tooth surfaces at the cementoenamel junction (CEJ). Most NCCLs of teeth can be classified into four categories: attrition, erosion, abrasion, and stress-induced cervical lesion. Stress-induced cervical lesions are loss of tooth structure that results from repeated tooth flexure caused...

BACKGROUND The development of ultrasound for use in dental tissues is hampered by the complex, multilayered nature of the teeth. The purpose of this preliminary study was to obtain the phase and group velocities associated with several directions of ultrasonic wave propagation in relation to the tooth structure, which would then lead to the determination of the elastic constants in dental hard ...

Patient demand for esthetic dentistry with minimally invasive procedures has resulted in the extensive use of freehand bonding of composite resin to anterior teeth. Preservation of remaining tooth structure and using as much enamel to bond to have made the procedure very predictable. In order to achieve maximum esthetics, the dentist must be able to use multiple layers of composite to mimic too...

The development of alveolar bone adjacent to the tooth root during tooth eruption is not well understood. This study tested the hypothesis that predominantly woven bone forms adjacent to tooth roots during tooth eruption, but that this immature structure transitions to lamellar bone when the tooth comes into function. Additionally, bone resorption was predicted to play a key role in transitioni...

Tooth wear and its rehabilitation is a much discussed and studied subject in dentistry. The increased life expectancy may be one of the factors that it has become more ubiquitous. Often patients with tooth wear report to the dental clinic requiring extensive restorative treatment. Wear can be the result of attrition, abrasion, erosion or abfraction. The clinical presentation may vary and can be...

A novel reconfigurable microstrip Bandpass filter (BPF) for centre frequency (fc) 3.5 GHz is proposed in this paper. A Square ring microstrip structure with gap coupled feed has been used. A new comb-tooth structure is proposed, where combination of tooth connection is responsible for the variation of bandwidth, this scheme has been used to achieve a fractional bandwidth (FBW) variation of 0.85...