| dc.description.abstract | Periapical radiography is designed to show the structure of the tooth in units including the root to the crown of the tooth as well as the surronding support tissue. Paralleling technique is a radiographic technique that can produce a more accurate radiograph than the bisecting technique. Among all humans teeth, the first molars of the mandibular are often affected by caries and usually require root canal treatment, even at an early age. This research aims to find out the prevalence of tooth, root, and furcation length of mandibular first molar in Bataknese using paralleling technique. The total of 35 radiographs of Bataknese samples in the form of primary data are collected using purposive sampling technique. Data obtained are processed through univariate to determine the mean and standard deviation. The result of this study is showed that the tooth length varied from the lowest 17,9 mm to the highest 22,9 mm. Furcation length from the lowest 2,6 mm to the highest 4,9 mm. The length of mesial root from the lowest 10,7 mm to the highest 15,0 mm and the length of distal root from the lowest 9,8 mm to the highest 14,2 mm. The research concludes that the prevalence of mandibular first molars tooth length in Bataknese students at USU using paralleling technique is 20,27±1,326. The prevalence of furcation length is 3,84±0,547. The prevalence of mesial root length is 12,73±1,231 and distal root length is 11,80±1,293. | en_US |
