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Variations in the Cross-Sectional Shape of the Apical Thirds of the Root Canals in Maxillary and Mandibular Teeth
Arfianti, Rizky Putri; Artiningsih, Dewa Ayu Nyoman Putri; Nazar, Kamizar.
  • Arfianti, Rizky Putri; Universitas Indonesia. Faculty of Dentistry. Undergraduate Program. Jakarta. ID
  • Artiningsih, Dewa Ayu Nyoman Putri; Universitas Indonesia. Faculty of Dentistry. Department of Conservative Dentistry. Jakarta. ID
  • Nazar, Kamizar; Universitas Indonesia. Faculty of Dentistry. Department of Conservative Dentistry. Jakarta. ID
Article in English | LILACS, BBO | ID: biblio-1135546
ABSTRACT
Abstract

Objective:

To determine the prevalence of cross-sectional variations in the apical thirds of the root canals in maxillary and mandibular teeth. Material and

Methods:

Eighty tooth samples (maxillary second premolar, maxillary first molar, and mandibular first molar) were scanned using micro-computed tomography. The apical third area of each root canal was sectioned and the maximum and minimum diameters were calculated from the mesiodistal and buccolingual diameters. The shapes were categorized as a round, oval, long oval, and flat based on the ratios obtained.

Results:

The most common shape of the apical third of the root canals in the maxillary second premolars was oval (66.7%), followed by long oval (24.6%), flat (7%), and round (1.7%). The corresponding values in the mesiobuccal root of the maxillary first molars were oval (68.2%), long oval (22.7%), flat (9.1%), 94.1% of the distobuccal roots were oval, while the remaining were long oval (5.9%). All the palatal root canals were oval. In the mesiobuccal root of the mandibular first molars, 47.4% were long oval in shape, followed by 36.8% oval and 15.8% flat canals. All the mesiolingual root canals were oval, whereas, in the distal root, 68.4% were oval, 21.1% long oval, and 10.5% were flat.

Conclusion:

The oval shape was most commonly observed in the majority of the root canals. Knowledge about the apical anatomy of the root can help the operator improve the root canal treatment's success.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Bicuspid / Anatomy, Cross-Sectional / Dental Pulp Cavity / Endodontics / Molar Type of study: Observational study / Prevalence study / Risk factors Limits: Humans Country/Region as subject: Asia Language: English Journal: Pesqui. bras. odontopediatria clín. integr Journal subject: Dentistry Year: 2020 Type: Article Affiliation country: Indonesia Institution/Affiliation country: Universitas Indonesia/ID

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Full text: Available Index: LILACS (Americas) Main subject: Bicuspid / Anatomy, Cross-Sectional / Dental Pulp Cavity / Endodontics / Molar Type of study: Observational study / Prevalence study / Risk factors Limits: Humans Country/Region as subject: Asia Language: English Journal: Pesqui. bras. odontopediatria clín. integr Journal subject: Dentistry Year: 2020 Type: Article Affiliation country: Indonesia Institution/Affiliation country: Universitas Indonesia/ID