Assessment of the Relationship Between Labial Gingival Thickness and Underlying Bone Thickness in Maxillary Anterior Teeth by Two Digital Techniques

2021 ◽  
Author(s):  
Linhong Wang ◽  
Jianping Chen ◽  
Yan Ruan ◽  
Yunxiao Luo ◽  
Fan Yang
Keyword(s):  
Computed Tomography ◽  
Negative Correlation ◽  
Cone Beam Computed Tomography ◽  
Significant Negative Correlation ◽  
Cone Beam ◽  
Bone Thickness ◽  
Gingival Thickness ◽  
Anterior Teeth ◽  
The Relationship ◽  
Healthy Participants

Abstract The aim of this study is to noninvasively assess the relationship between the labial gingival thickness (GT) and the underlying bone thickness (BT) of the maxillary anterior teeth by two digital techniques. GT and BT were measured at 2、4 and 6 mm apical to the cemento-enamel junction (CEJ) by two digital techniques: M1- cone-beam computed tomography (CBCT) and M2- digital intraoral scanning (DIS) combined with CBCT (30 healthy participants, 172 maxillary anterior teeth). Pearson's correlation coefficient was calculated to assess the correlation between GT and BT. A significant negative correlation was identified between GT and BT at 2、4 mm apical to the CEJ for central incisors (CI), lateral incisors (LI), and canines (CA) both by M1 and M2, but not at 4 mm apical to the CEJ for CA (M2) or at 6 mm apical to the CEJ for all (M1, M2). The labial BT was demonstrated < 1 mm in most cases (85% of the CI; 97% of the LI; and 90% of the CA). Within the limitation of this study, it is concluded that the GT and BT seems to be negatively correlated in most cases, which should be cautious clinically.

scholarly journals Assessment of the relationship between labial gingival thickness and the underlying bone thickness in maxillary anterior teeth by two digital techniques

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Linhong Wang ◽  
Yan Ruan ◽  
Jianping Chen ◽  
Yunxiao Luo ◽  
Fan Yang
Keyword(s):  
Negative Correlation ◽  
Significant Negative Correlation ◽  
Bone Thickness ◽  
Gingival Thickness ◽  
Anterior Teeth ◽  
Weak Negative Correlation ◽  
Implant Restoration ◽  
The Relationship ◽  
Esthetic Area ◽  
Healthy Participants

AbstractThis study aimed to noninvasively assess the relationship between the labial gingival thickness (GT) and the underlying bone thickness (BT) of maxillary anterior teeth by two digital techniques. A total of 30 periodontally healthy participants with 172 maxillary anterior teeth were enrolled. GT and BT were measured at 2, 4 and 6 mm apical to the cemento-enamel junction (CEJ) by two digital techniques: M1—cone-beam computed tomography (CBCT) and M2—digital intraoral scanning (DIS) combined with CBCT. The Pearson's correlation coefficient was calculated to determine the correlation between GT and BT. A significant negative correlation was identified between GT and BT at 2 mm apical to the CEJ for central incisors (CI), lateral incisors (LI), and canines (CA) both by M1 and M2, while a weak negative correlation at 4 mm apical to the CEJ was observed by M1 for CA. No significant correlation was found at other sites by both M1 and M2. The labial BT was < 1 mm in most cases (85% of CI; 97% of LI; and 90% of CA). Within the limitation of this study, it was concluded that GT and BT seemed to be negatively correlated at 2 mm apical to the CEJ. Therefore, caution is warranted when implant restoration at the esthetic area of the anterior teeth.

scholarly journals Evaluation of the morphometric relationship between the alveolar bone and gingival dimensions in the maxillary anterior teeth using cone-beam computed tomography imaging: A cross-sectional study

2021 ◽  
Author(s):  
Katia Montanha-Andrade ◽  
◽  
Ieda M Crusoé-Rebello ◽  
Nara Santos Araujo ◽  
Maurício Andrade Barreto ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Pearson Correlation ◽  
Cone Beam ◽  
Gingival Thickness ◽  
Gingival Margin ◽  
Computed Tomography Images ◽  
Anterior Teeth ◽  
Gingival Dimensions

The purpose of this study was to investigate the relationship between the alveolar bone and gingival dimensions in the maxillary anterior teeth. Cone-beam computed tomography images of 160 maxillary anterior teeth were evaluated. The Bone (BT) and Gingival Thickness (GT) and distances between Cemento-Enamel Junction (CEJ) and alveolar Bone Crest (CEJ-BC) and Cemento-Enamel Junction and Gingival Margin (CEJ-GM) were measured on the labial surface at the cervical third of the tooth root. Pearson correlation test or partial correlation was used. BT was significantly and positively associated with CEJ-GM in lateral incisors (p=0.04). The correlation between CEJBC and CEJ-GM was negative and statistically significant for incisors and canines (p≤0.01). The correlation between CEJ-BC and GT was positive and statistically significant for central incisors and canines (p≤0.01). Greater bone thickness was associated with higher gingival margin level at the lateral incisor, but not with bone crest level. Lower bone crest level was associated with greater gingival thickness at the central incisor and canines, and with lower gingival margin level at all the anterior maxillary teeth. The planning of orthodontic, periodontal, and restorative treatments should consider these dimensions of marginal periodontal tissue are interrelated and their relationship vary by tooth type.

scholarly journals Relationship between mandibular symphysis dimensions and mandibular anterior alveolar bone thickness as assessed with cone-beam computed tomography

2018 ◽  
Vol 23 (1) ◽  
pp. 54-62 ◽  
Author(s):  
Pimchanok Foosiri ◽  
Korapin Mahatumarat ◽  
Soontra Panmekiate
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Correlation Coefficients ◽  
Cone Beam ◽  
Bone Thickness ◽  
Significance Level ◽  
Computed Tomography Images ◽  
Anterior Teeth ◽  
Root Apices

ABSTRACT Objective: To determine the relationship between symphysis dimensions and alveolar bone thickness (ABT) of the mandibular anterior teeth. Methods: Cone-beam computed tomography images of 51 patients were collected and measured. The buccal and lingual ABT of the mandibular anterior teeth was measured at 3 and 6 mm apical to the cemento-enamel junction (CEJ) and at the root apices. The symphysis height and width were measured. The symphysis ratio was the ratio of symphysis height to symphysis width. Kendall’s tau correlation coefficient was used to determine the relationships between the variables at a 0.05 significance level. Results: The mandibular anterior teeth lingual and apical ABT positively correlated with symphysis width (p<0.05). Moreover, these thicknesses negatively correlated with the symphysis ratio (p<0.05). Symphysis widths and ratios showed higher correlation coefficients with total and buccal apical ABT, compared with lingual ABT. Buccal ABT at 3 and 6 mm apical to the CEJ was not significantly correlated with most symphysis dimensions. The mean thickness of the buccal alveolar bone at the upper root half was only 0.2-0.6 mm, which was very thin, when compared with other regions. Conclusion: For mandibular anterior teeth, the apical alveolar bone and lingual alveolar bone tended to be thicker in patients with a wide and short symphysis, compared to those with a narrow and long symphysis. Buccal alveolar bone was, in general, very thin and did not show a significant relationship with most symphysis dimensions.

scholarly journals Height difference between the vestibular and palatal walls and palatal width: a cone beam computed tomography approach

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
P. López-Jarana ◽  
C. M. Díaz-Castro ◽  
A. Falcão ◽  
C. Falcão ◽  
J. V. Ríos-Santos ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Cone Beam ◽  
Bone Thickness ◽  
Height Difference ◽  
Mean Values ◽  
The Mean ◽  
Maxilla And Mandible ◽  
Palatal Bone ◽  
Two Parameters

Abstract Background The objective of this study was to measure two parameters involved in tri-dimensional implant planning: the position of the buccal and palatal bone wall and the palatal thickness. Methods Cone beam computed tomography (CBCT) images (Planmeca ProMax 3D) of 403 teeth (208 upper teeth and 195 lower teeth) were obtained from 49 patients referred to the Dental School of Seville from January to December 2014. The height difference between the palatal and buccal walls was measured on the most coronal point of both walls. The thickness of the palatal wall was measured 2 mm from the most coronal point of the palatal wall. Results The mean values in the maxilla were 1.7 ± 0.9 mm for central and lateral incisors, 2.2 ± 1.7 mm for canines, 1.6 ± 0.9 mm for premolars and 1.9 ± 1.5 mm for molars. In the lower jaw, the mean values were 1.3 ± 0.8 mm for incisors, 1.7 ± 1.2 mm for canines, 2.3 ± 1.3 mm for premolars, and 2.6 ± 1.7 mm for molars. In the upper jaw, more than 55% of maxillary teeth (excluding second premolars and molars) presented mean height differences greater than 1 mm. In the mandible, more than 60% of incisors showed a buccal bone thickness of 1 mm from the apical to lingual aspect. All teeth except the second premolar presented a buccal wall located more than 1 mm more apically than the lingual bone wall. Conclusions The buccal bone wall is located more apically (greater than 1 mm) than the palatal or lingual table in most of the cases assessed. The thickness of the palatal or lingual table is also less than 2 mm in the maxilla and mandible, except in the upper canines and premolars and the lower molars.

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