Lower first molarsFurcation root surface anatomyRoot concavityReplica methodSuccessful manipulation of instruments clinically requires instinctive dexterity based on a thorough knowledge of dental anatomy. In round and nearly straight roots of upper central incisors in which the canals are centered in the ...
The diastema of the lower jaw is concave, and there is a sharp ‘step up’ to the plane of the molar teeth. Each mandible has one incisor that grows continuously, three molar teeth, but no premolar teeth or canines, giving a dental formula of I 1/1; C 0/0; PM 0/0; M 3/3. ...
Tooth loss as a result of periodontal disease is more frequently encountered in first and second molars in comparison to other tooth types due to complexity of the furcation regions of multi-rooted teeth. Furcation entrance dimension (FED) and root trunk length (RTL) of these teeth affect either...
2, 1927, announcement was made of the discovery of a lower molar hominid tooth in the cave deposit at Chou Kou Tien, near Peking. The new specimen was obtained close to the site from which the first hominid teeth from this locality were recovered and in the same stratum of the deposit ...
- 《Anatomical Record-advances in Integrative Anatomy & Evolutionary Biology》 被引量: 88发表: 2010年 Evaluation of proximal tooth contact tightness at rest and during clenching The tightness of proximal tooth contact between the second premolar and the first molar of both the maxilla and the ...
In general, each upper molar moved in the apical palatal direction while each lower molar moved in the lingual direction.2. For each upper molar, the amount of displacement varied proportionally depending on the clenching force. The direction of displacement was towards the palatal side.3. For ...
However, the height of the hypoconid, which was the highest in the lower molar cusps, showed almost the same mean value as the height of the upper three principal cusps, indicating that the height of the main functional cusp, in both upper and lower first molars, was almost the same....
In this manuscript, the authors propose a new technique for inserting implants immediately into the sockets corresponding to the lower first molars and, in any case, in the sockets in which the alveolar septum is still present. Immediate post-extraction implants are a widely discussed...
This report demonstrates the clinical use of a modified, truly anatomic, root-analogue zirconia implant for immediate replacement of a two-rooted, left first mandibular molar. A 50-year-old female patient with chronic apical periodontitis of the left mandibulary first molar was referred and the ...
In this study, we present a 2D geometric morphometric analysis of the crown anatomy of lower first, second, and third molars of a broad sample of hominins, including Pliocene and Lower, Middle, and Upper Pleistocene species coming from Africa, Asia, and Europe. We show that shape variability...