Topography of Primary Molar Pulp Chamber Floor: A Scanning Electron Microscopy and Micro-Computed Tomography Analysis

被引：4

作者：

Lopes Bandeira, Ana Victoria ^{[1
,2
]}

Moura de Lima, Marina de Deus ^{[1
,2
]}

Branco Lima, Cacilda Castelo ^{[1
,2
]}

de Moura, Marcoeli Silva ^{[1
,2
]}

Del Bel Cury, Altair Antoninha ^{[3
]}

Almeida de Deus Moura, Lucia de Fatima ^{[1
,2
]}

机构：

[1] Univ Fed Piaui, Sch Dent, Dept Pathol, Teresina, PI, Brazil

[2] Univ Fed Piaui, Sch Dent, Dent Clin, Teresina, PI, Brazil

[3] Univ Estadual Campinas, Piracicaba Dent Sch, Dept Prosthodont & Periodontol, Piracicaba, SP, Brazil

来源：

PESQUISA BRASILEIRA EM ODONTOPEDIATRIA E CLINICA INTEGRADA | 2021年 / 21卷

关键词：

Dental Pulp Cavity; Tomography; X-Ray Computed; Molar; Microscopy; Electron; Scanning; ROOT-CANAL MORPHOLOGY; ACCESSORY CANALS; FURCATION AREA; PRIMARY TEETH; HUMAN MAXILLARY; PREVALENCE; LOCATION; FORAMINA; REGION;

D O I：

10.1590/pboci.2021.150

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Objective: To determine in vitro the frequency, shape, type, diameter, and patency of accessory canals in the primary molars pulp chamber floor. Material and Methods: Sixteen healthy primary molars were evaluated by micro-computed tomography and scanning electron microscopy. Descriptive analyses of the frequency, shape (round, oval, or irregular), type (blind, true, or hidden), patency and diameter of the accessory canals were performed. Results: Half of the teeth presented accessory canals, 62.5% of which were located in the upper molars and 37.5% in the lower molars. The most frequent shape was irregular. In three-dimensional analysis, blind accessory canals (12.5%) and with patency (18.7%) of the teeth were observed. The average accessory canal diameter was 51.97 mu m (+/- 26.03 mu m). Conclusion: Upper molars showed a higher frequency of accessory canals with larger diameters. The irregular shape was the most frequent. 18.7% of accessory channels showed patency.

引用

页数：7

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