نتایج جستجو برای: number of teeth
تعداد نتایج: 21179769 فیلتر نتایج به سال:
a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...
Taurodontism is a rare dental anomaly in which the involved tooth has enlarged and elongated body and pulp chamber with apical displacement of the pulpal floor. Endodontic treatment of these teeth is challenging because it requires identifying the number of root canals. A case of bilateral involvement of maxillary first molar teeth is presented. Endodontic treatment of the right maxillary first...
BACKGROUND AND AIM: Supernumerary tooth (ST) is considered as a developmental tooth abnormality in number that most often occurs in the anterior region of the maxilla. They may erupt or remain impacted in the alveolar bone. The impacted teeth can cause eruptional disturbances for the adjacent developing teeth. CASE REPORT: A case of bilateral supplemental maxillary lateral incisors in a nonsynd...
abstract: in the paper of black and scholes (1973) a closed form solution for the price of a european option is derived . as extension to the black and scholes model with constant volatility, option pricing model with time varying volatility have been suggested within the frame work of generalized autoregressive conditional heteroskedasticity (garch) . these processes can explain a number of em...
introdouction: the high prevalence of apical periodontitis (ap) of endodontic origin raises an important public health problem. root canal treatment (rct) and crown restoration (cr) have an effect on its prevalence. this cross-sectional study was performed to assess the effect of rct and cr on the prevalence of ap. materials and methods: two observers assessed 608 teeth with rct belonging to pa...
Introdouction: The high prevalence of apical periodontitis (AP) of endodontic origin raises an important public health problem. Root canal treatment (RCT) and crown restoration (CR) have an effect on its prevalence. This cross-sectional study was performed to assess the effect of RCT and CR on the prevalence of AP. Materials and methods: Two observers assessed 608 teeth with RCT belonging to p...
abstract introduction: the human teeth have many anatomical variations and treatment of each tooth is under the influence of its configuration. therefore, recognizing canal configuration is necessary for a correct endo-dontic therapy, and lack of information about canal configuration causes failure in therapy. since one of the most effective factors on canal configuration is race, we planed to ...
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