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Preliminary investigation of the variations in root canal morphology of hypomineralised second primary molars
Author(s) -
Neboda Chaturi,
Anthonappa Robert P.,
King Nigel M.
Publication year - 2018
Publication title -
international journal of paediatric dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.183
H-Index - 62
eISSN - 1365-263X
pISSN - 0960-7439
DOI - 10.1111/ipd.12356
Subject(s) - medicine , molar , morphology (biology) , dentistry , root (linguistics) , orthodontics , linguistics , paleontology , philosophy , biology
Aim To investigate the root canal morphology of hypomineralised second primary molars( HSPM ) using micro‐ CT ( μ CT ) compared with non‐hypomineralised second primary molars (non‐ HSPM ). Methodology Ten HSPM and 10 non‐ HSPM were divided into Group 1(maxillary HSPM ), Group 2 (mandibular HSPM ), Group 3(maxillary non‐ HSPM ), and Group 4 (mandibular non‐ HSPM ). All teeth were scanned using μ CT to assess the following parameters: (i) root canal configuration, (ii) pulp volumes, and (iii) the influence of the root canal system landmarks on access cavity outline forms and canal curvature. Two‐way ANOVA was employed for descriptive analysis ( P < 0.05). Results At the furcation level, there was minimal variation in the number of canals. In the mesiobuccal root, Group 1 showed higher frequency of multiple canals in the middle (85.7%) and apical (85.7%) thirds compared with Group 3. In the mesial root, Group 4 demonstrated multiple canals at the furcation (60%) compared with Group 2(33.3%). In the distal root, Group 2 demonstrated a higher percentage of multiple canals at the apical level (100%) compared with Group 4. The mean pulp volumes of Group 2 and Group 4 were 54.1 mm 3 (16.7) and 30 mm 3 (5.12), respectively, which was statistically significant ( P < 0.05). The canal curvature values did not differ significantly between HSPM and non‐ HSPM groups. Conclusions HSPM exhibited greater variations in their root canal configuration when compared to non‐ HSPM .