Abstract
Aim
This was to investigate the root canal morphology of primary molar teeth using micro-computed tomography.
Methods
Primary maxillary (n=20) and mandibular (n=20) molars were scanned and analysed regarding the number, location, volume, area, structured model index (SMI), area, roundness, diameters, and length of canals, as well as the thickness of dentine in the apical third. Data were statistically compared by using paired-samplet test, independent sample t test, and one-way analysis of variance with significance level set as 5 %.
Results
Overall, no statistical differences were found between the canals with respect to length, SMI, dentine thickness, area, roundness, and diameter (p<0.05). A double canal system was observed in the mesial and mesio-buccal roots of the mandibular and maxillary molars, respectively. The thickness in the internal aspect of the roots was lower than in the external aspect. Cross-sectional evaluation of the roots in the apical third showed flat-shaped canals in the mandibular molars and ribbon- and oval-shaped canals in the maxillary molars. Conclusions External and internal anatomy of the pri-mary first molars closely resemble the primary second molars. The reported data may help clinicians to obtain a
thorough understanding of the morphological variations of root canals in primary molars to overcome problems rela-ted to shaping and cleaning procedures, allowing appro-priate management strategies for root canal treatment.
Conclusions
External and internal anatomy of the pri-mary first molars closely resemble the primary second molars. The reported data may help clinicians to obtain a thorough understanding of the morphological variations of root canals in primary molars to overcome problems related to shaping and cleaning procedures, allowing appropriate management strategies for root canal treatment.
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