Author/Authors :
Paknejad, Mojgan Tehran University of Medical Sciences, Tehran , Khorsand, Afshin Tehran University of Medical Sciences, Tehran , Yaghobee, Siamak Tehran University of Medical Sciences, Tehran , Motahhari, Pooriya , Etebarian, Arghavan Department of Oral and Maxillofacial Pathology - School of Dentistry, Tehran University of Medical Sciences, Tehran , Bayani, Mojtaba Department of Periodontics - School of Dentistry, Tehran University of Medical Sciences, Tehran , Mehrfard, Ali Azad University of Medical Sciences - School of Dentistry, Tehran
Abstract :
Objectives: The aim of this study was to determine the cementum thickness in the first molars of patients with localized aggressive periodontitis (LAP) compared to healthy indi- viduals.
Materials and Methods: This case-control study compared eight first molar teeth affected by LAP with eight third molar teeth of healthy individuals. The teeth were disinfected by immersion in 10% buffered formalin solution for three days and were then sectioned. Ex- ternal mesial root surfaces (middle one-third) were evaluated under a stereomicroscope by a blinded pathologist to determine the mean thickness of cementum. SPSS software (version 16.0) and t-test were used for statistical analysis.
Results: Histological examination revealed a significant difference between the two groups in terms of the amount of cementogenesis (P<0.001) .The thickness of cementum was higher in the control group (105.16±11.5 μm) than in LAP patients (86.44±7.3 μm).
Conclusion: This study demonstrated the presence of cementum hypoplasia in mesial root surfaces of first molars affected by LAP
Keywords :
Dental Cementum , Hypoplasia , Aggressive Periodontitis , Cementogenesis
