Measurements of the gingival papillae architecture using cone-beam computed tomography in young Chinese adults

Abstract

Background The aim of this study was to measure the morphology of interdental papillae (IP) in maxillary anterior teeth using cone-beam computed tomography (CBCT). Methods Twenty-seven periodontally healthy subjects with 135 IP were evaluated by means of periodontal examination and a CBCT scan with an elastomeric matrix containing radiopaque material in position. According to the status of tooth contact and presence of IP, subjects were categorized into three groups: open contact point, complete papillae, and deficient papillae group. The papillae height (PH), facial-lingual thickness (FLT), and interdental distance (IDD) were measured. Data was analyzed with the significance level at α = 0.05. Results The mean PH values were 4.17 ± 0.51 mm, 3.99 ± 0.61 mm, and 3.99 ± 0.62 mm, for the open contact group, complete papilla, and deficient papilla group, respectively. The PH values of the recorded sites among central incisors, lateral incisors, and canine were 4.13 ± 0.56 mm, 3.87 ± 0. 63 mm, and 4.07 ± 0.58 mm, respectively. No statistically significant differences of the PH values were determined between the above three tested groups as well as between the different sites (p > 0.05). The IDD values obtained from the complete papilla group were significantly lower than the other tested groups (p < 0.05). Conclusion The contact point condition of upper anterior sextants may not influence the presence and dimension of the IP in periodontally healthy subjects.

The incidence and severity of open gingival embrasures in adults treated with clear aligners and fixed appliances: a retrospective cohort study

“…Divergent roots and triangular-shaped crown increased distance from the alveolar bone crest to the interproximal contact [ 4 , 31 , 32 ]. A triangular-shaped crown may also be related to “scalloped-thin” gingiva that experiences higher risks of deficient papilla [ 31 , 33 ]. No relationship between IPR and the incidence of OGEs was observed in a recent research [ 5 ].…”