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Morphological assessments about root apex of permanent mandibular first and second premolars in a Turkish population
  • Fidan Babayeva,
  • Ekim Onur ORHAN,
  • Özgür Irmak
Fidan Babayeva
Eskişehir Osmangazi Üniversitesi
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Ekim Onur ORHAN
Eskişehir Osmangazi Üniversitesi

Corresponding Author:[email protected]

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Özgür Irmak
Near East University
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Abstract

Aims (I) To assess apical morphological data of mandibular first and second premolars in a Turkish population at a young-adult age range (II) to analyze potential correlations between the size and position of the foramina. Materials and Methods Extracted sound teeth with varied reasons were collected from an adult volunteer population as willing to donate. The mean age of volunteers was 25.4±4.6. Morphological data were obtained from specimens using a stereomicroscope integrated with the software. The number, size, shape, and position of apical foramina and frequency of accessory foramina were quantified. Mann-Whitney U and Spearman’s rank correlation tests were performed (α=0.05). Results A total of 237 teeth were investigated. The majority of the specimens had one major apical foramen. The frequency of major apical foramina was between 1–3 for both groups. The median (Q1-Q3) apical foramina size in mandibular first and second premolars were 55,180µm2 (39,119-85,639µm2) and 67,483µm2 (43,757-98,410µm2), respectively. The majority of foramina shape was irregular (38.2%) for the mandibular first premolars whereas, was oval (35.3%) for the second premolars. The median (Q1-Q3) location of apical foramina with respect to the anatomic apex was 664 µm (512-907µm) in mandibular first premolars and 677µm (515-1053µm) in mandibular second premolars. Conclusions The size and location of apical foramina mostly overlap between the mandibular first and second premolars of a young adult Turkish population. The shape of the apical foramina might be the only relevant variation concerning the apical morphology between the mandibular first and second premolars in young adults. The interaction between the size and location of apical foramina in mandibular premolars of young adults seems not significant.