■要评估子宫颈根管牙本质壁的厚度,中间,和第一磨牙的顶端三分之一。
■由30张上颌和下颌第一磨牙的锥形束计算机断层扫描(CBCT)图像组成的横断面研究,皇冠,和根的完整性。在三个轴向视图中测量每个管道的壁牙本质厚度,分为远端(D),mesial,舌/腭,和颊表面。
■上颌磨牙的最小牙本质壁厚度位于中颊(MB)管顶端三分之一的内侧表面(平均0.55±0.04mm)。远颊(DB)和P管的颊和腭(P)表面显示出子宫颈三分之一的牙本质厚度最小(0.62±0.02mm)。在下颌磨牙上,我们发现根尖第三[MB管的舌面和舌尖(ML)管的颊面]上的牙本质厚度最小,平均为0.41±0.07mm。此外,牙本质厚度平均约为0.67±0.11mm。
■了解初级第一磨牙的解剖结构对于减少根管治疗期间儿科患者可能出现的并发症至关重要。
■牙髓切除术是儿科牙科中最具挑战性的手术之一,对乳牙根部解剖结构的了解使专业人员能够做出更好的临床决策,并降低根管治疗期间可能的风险。
■Justiniano-NavarroC,卡瓦列罗-加西亚·S,洛佩斯-罗德里格斯G,etal.使用锥形束计算机断层扫描评估原发性第一磨牙的根管牙本质壁的厚度。IntJClinPediatrDent2023;16(S-2):S122-S127。
UNASSIGNED: To evaluate the thickness of the root canal dentin wall in the cervical, middle, and apical third of primary first molars.
UNASSIGNED: Cross-sectional study consisting of 30 cone-beam computed tomography (CBCT) images of primary maxillary and mandibular first molars, with crown, and root integrity. The wall dentin thickness of each canal was measured in three axial views, divided into distal (D), mesial, lingual/palatine, and buccal surfaces.
UNASSIGNED: The smallest dentin wall thickness of the maxillary molar was located on the mesial surface of the mesiobuccal (MB) canal apical third (mean 0.55 ± 0.04 mm). The buccal and palatal (P) surfaces of the distobuccal (DB) and P canals showed the smallest dentin thickness on the cervical third (0.62 ± 0.02 mm). On the mandibular molar, we found the smallest dentin thickness on the apical third [lingual surface of the MB canal and buccal surface of the mesiolingual (ML) canal] with a mean of 0.41 ± 0.07 mm. Additionally, the dentin thickness is average of the D canal was about 0.67 ± 0.11 mm.
UNASSIGNED: It is essential to understand the primary first molar\'s anatomy to reduce possible complications in pediatric patients from instrumentation during root canal treatments.
UNASSIGNED: Pulpectomy is among the most challenging procedures in pediatric dentistry and the knowledge of the root anatomy of primary teeth allows the professional to make better clinical decisions and reduce possible risks during root canal treatment.
UNASSIGNED: Justiniano-Navarro C, Caballero-García S, López-Rodriguez G, et al. Evaluating the Thickness of the Root Canal Dentin Wall in Primary First Molars using Cone-beam Computed Tomography. Int J Clin Pediatr Dent 2023;16(S-2):S122-S127.