IADR Abstract Archives

VARIATIONS IN EXTERNAL ROOT MORPHOLOGY OF EXTRACTED FIRST PERMANENT MOLARS

Objectives: To assess the variations in external root morphology of first permanent molars extracted from dental patients in Dar es salaam, Tanzania.
Methods: This cross-sectional study analyzed a sample of 316 extracted first permanent molar teeth from the patients aged 9 – 40 years attending selected public dental clinics. Plastic containers with label indicating patient’s age, sex and tooth type and half filled with 10% formalin were used to collect the extracted teeth. Samples were visually assessed for number of roots, root curvature and direction of curvature. Data collected was analyzed using SPSS and p < 0.05 was considered statistical significant.
Results: Majority of the extracted first permanent molars were mandibular molars (64.2%) from patients aged 19 - 25 years (75%) and females (65.9%). Many more of the maxillary molars had three separated roots (91.2%) while few had two fused roots (8.8%). Two separated roots was common in mandibular molars (98%) while 1% had fused root and 1% had three roots. In maxillary molars root curvature was observed in mesiobuccal (53.4%), distobuccal (31.1%) and palatal (17.5%) roots. Direction of curvature in mesiobuccal roots was distal (92.8%), distobuccal roots mesial (78.1%) and palatal roots buccal (94.4%). Most of the extracted mandibular first permanent molars had curved mesial roots (93%) and few of the distal roots curved (19.1%). Most of the mesial roots were distally curved (99.5%) while the distal roots were mesially curved (52.6%).
Conclusions: This study found a variation in external morphology of the extracted first permanent molars with regard to presence of few fused roots both maxillary and mandibular molars. Both maxillary and mandibular molars had curved roots and direction of curvature was distal in both the mesiobuccal root of maxillary molars and mesial root of mandibular molars.
African and Middle Eastern Region Meeting
2017 African and Middle Eastern Region Meeting (Addis Ababa, Ethiopia)
Addis Ababa, Ethiopia
2017

Oral Health Research
  • Carneiro, Lorna  ( Muhimbili University of Health & Allied Sciences , Dar es salaam , Tanzania, United Republic of )
  • Tekka, Risala  ( Muhimbili University of Health & Allied Sciences , Dar es salaam , Tanzania, United Republic of )
  • Kayombo, Cecilia  ( Muhimbili University of Health & Allied Sciences , Dar es salaam , Tanzania, United Republic of )
  • None
    Poster Session
    2017 African and Middle Eastern Region Meeting (Addis Ababa, Ethiopia)