IADR Abstract Archives
Correlation of Radiographic Dimensions of Gingival Embrasure with Clinical Parameters of Interdental Papilla
Objectives: The level of crestal bone at the interdental area is the most important factor determining the position and dimensions of interdental papilla. The aim of this study is to assess the correlation of the dimensions of gingival embrasures on periapical radiographs with the clinical parameters of interdental papillae.
Methods: Fifty-six subjects (24 males and 32 females between 20 to 30 years) were evaluated. Five esthetic sites: papillae between the two central incisors, central and lateral incisors and between premolars, were evaluated in each subject. Periapical radiographs were obtained using the parallel technique and an impression was made from the esthetic zone in each subject. The respective embrasures in dental casts were also photographed. The vertical length, base, and surface area of each interdental site were measured both radiographically and clinically. The correlation coefficient between the radiographic and clinical variables was calculated in total and separately for each site. Data were analyzed using SPSS version 19 and the Pearson’s correlation test.
Results: A total of 216 sites were evaluated. The correlation between the heights of clinical papilla and radiographic embrasure was significant only at the embrasure between the two central incisors (0.491, P=0.00). The correlations between the clinical and radiographic base and surface area measurements of the papillae were not significant. The correlation between the radiographic embrasure height and clinical base of the papillae was weakly significant only between the central and lateral incisors (0.278, P=0.019). The correlation between the radiographic height and clinical surface area of the papillae was also weakly significant (0.278, P=0.019).
Conclusions: The correlations between clinical and radiographic data were not similar in different interdental areas in esthetic zone. It appears that radiographic distance between interdental bone level and contact point had significant correlation with papilla height between two centrals, and weak correlation with papilla width and surface area.
Methods: Fifty-six subjects (24 males and 32 females between 20 to 30 years) were evaluated. Five esthetic sites: papillae between the two central incisors, central and lateral incisors and between premolars, were evaluated in each subject. Periapical radiographs were obtained using the parallel technique and an impression was made from the esthetic zone in each subject. The respective embrasures in dental casts were also photographed. The vertical length, base, and surface area of each interdental site were measured both radiographically and clinically. The correlation coefficient between the radiographic and clinical variables was calculated in total and separately for each site. Data were analyzed using SPSS version 19 and the Pearson’s correlation test.
Results: A total of 216 sites were evaluated. The correlation between the heights of clinical papilla and radiographic embrasure was significant only at the embrasure between the two central incisors (0.491, P=0.00). The correlations between the clinical and radiographic base and surface area measurements of the papillae were not significant. The correlation between the radiographic embrasure height and clinical base of the papillae was weakly significant only between the central and lateral incisors (0.278, P=0.019). The correlation between the radiographic height and clinical surface area of the papillae was also weakly significant (0.278, P=0.019).
Conclusions: The correlations between clinical and radiographic data were not similar in different interdental areas in esthetic zone. It appears that radiographic distance between interdental bone level and contact point had significant correlation with papilla height between two centrals, and weak correlation with papilla width and surface area.
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