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Root canal morphology of hypomineralised first permanent molars using micro-CT.

Abstract

AIM

To investigate the root canal morphology of hypomineralised first permanent molars (FPMs) using micro-CT (μCT).

METHODOLOGY

Twenty-four hypomineralised FPMs and five clinically sound FPMs were scanned using μCT and assessed using the following parameters: (i) root canal configuration, (ii) connecting canal frequency, (iii) enamel, dentin, and pulp volumes, (iv) cusp tip to pulp horn distance, root canal length, root canal width, and dentin thickness, and (v) the influence of the root canal system landmarks on access cavity outline forms and canal curvature. A two-way repeated-measures analysis of variance was employed with the statistical significance set at p < 0.05.

RESULTS

The frequency of accessory and connecting canals was higher in hypomineralised FPMs. Mesio-buccal cusp horn was found to be the closest to its corresponding cusp tip in both groups. There was no significant difference between the root lengths, dentine widths, and pulp space measurements of hypomineralised FPMs compared to clinically sound FPMs. The best angulation to access FPMs was straight-line radicular, along the pulp horn.

CONCLUSIONS

This study illustrates some variations in the root canal morphology in hypomineralised FPMs compared to clinically sound FPMs. Future studies should focus on assessing these parameters in larger samples.

Authors+Show Affiliations

Discipline of Paediatric Dentistry, School of Dentistry, The University of Western Australia, 17 Monash Avenue, Nedlands, WA, 6009, Australia. 10759551@uwa.edu.au.Discipline of Paediatric Dentistry, School of Dentistry, The University of Western Australia, 17 Monash Avenue, Nedlands, WA, 6009, Australia.The Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Nedlands, Australia.Discipline of Paediatric Dentistry, School of Dentistry, The University of Western Australia, 17 Monash Avenue, Nedlands, WA, 6009, Australia.Discipline of Paediatric Dentistry, School of Dentistry, The University of Western Australia, 17 Monash Avenue, Nedlands, WA, 6009, Australia.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31502177

Citation

Neboda, C, et al. "Root Canal Morphology of Hypomineralised First Permanent Molars Using Micro-CT." European Archives of Paediatric Dentistry : Official Journal of the European Academy of Paediatric Dentistry, 2019.
Neboda C, Anthonappa RP, Engineer D, et al. Root canal morphology of hypomineralised first permanent molars using micro-CT. Eur Arch Paediatr Dent. 2019.
Neboda, C., Anthonappa, R. P., Engineer, D., King, N. M., & Abbott, P. V. (2019). Root canal morphology of hypomineralised first permanent molars using micro-CT. European Archives of Paediatric Dentistry : Official Journal of the European Academy of Paediatric Dentistry, doi:10.1007/s40368-019-00469-x.
Neboda C, et al. Root Canal Morphology of Hypomineralised First Permanent Molars Using Micro-CT. Eur Arch Paediatr Dent. 2019 Sep 9; PubMed PMID: 31502177.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Root canal morphology of hypomineralised first permanent molars using micro-CT. AU - Neboda,C, AU - Anthonappa,R P, AU - Engineer,D, AU - King,N M, AU - Abbott,P V, Y1 - 2019/09/09/ PY - 2019/05/18/received PY - 2019/07/31/accepted PY - 2019/9/11/entrez KW - First permanent molars KW - Hypomineralisation KW - Micro-CT KW - Molar hypomineralisation KW - Molar incisor KW - Root canal morphology JF - European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry JO - Eur Arch Paediatr Dent N2 - AIM: To investigate the root canal morphology of hypomineralised first permanent molars (FPMs) using micro-CT (μCT). METHODOLOGY: Twenty-four hypomineralised FPMs and five clinically sound FPMs were scanned using μCT and assessed using the following parameters: (i) root canal configuration, (ii) connecting canal frequency, (iii) enamel, dentin, and pulp volumes, (iv) cusp tip to pulp horn distance, root canal length, root canal width, and dentin thickness, and (v) the influence of the root canal system landmarks on access cavity outline forms and canal curvature. A two-way repeated-measures analysis of variance was employed with the statistical significance set at p < 0.05. RESULTS: The frequency of accessory and connecting canals was higher in hypomineralised FPMs. Mesio-buccal cusp horn was found to be the closest to its corresponding cusp tip in both groups. There was no significant difference between the root lengths, dentine widths, and pulp space measurements of hypomineralised FPMs compared to clinically sound FPMs. The best angulation to access FPMs was straight-line radicular, along the pulp horn. CONCLUSIONS: This study illustrates some variations in the root canal morphology in hypomineralised FPMs compared to clinically sound FPMs. Future studies should focus on assessing these parameters in larger samples. SN - 1996-9805 UR - https://www.unboundmedicine.com/medline/citation/31502177/Root_canal_morphology_of_hypomineralised_first_permanent_molars_using_micro-CT L2 - https://dx.doi.org/10.1007/s40368-019-00469-x DB - PRIME DP - Unbound Medicine ER -