Limits...
Assessment of buccal bone thickness of aesthetic maxillary region: a cone-beam computed tomography study.

Fuentes R, Flores T, Navarro P, Salamanca C, Beltrán V, Borie E - J Periodontal Implant Sci (2015)

Bottom Line: Additionally, only on the left side were significant differences in some measurements of buccal bone thickness observed according to age and gender.However, age and gender did not show significant differences in heights between the palatal and buccal plates.In a few cases, the buccal wall had a greater height than the palatal wall.

View Article: PubMed Central - PubMed

Affiliation: Research Centre in Dental Sciences (CICO), Universidad de La Frontera Dental School, Temuco, Chile.

ABSTRACT

Purpose: The aim of this study was to analyze the anatomical dimensions of the buccal bone walls of the aesthetic maxillary region for immediate implant placement, based upon cone-beam computed tomography (CBCT) scans in a sample of adult patients.

Methods: Two calibrated examiners analyzed a sample of 50 CBCT scans, performing morphometric analyses of both incisors and canines on the left and right sides. Subsequently, in the sagittal view, a line was traced through the major axis of the selected tooth. Then, a second line (E) was traced from the buccal to the palatal wall at the level of the observed bone ridges. The heights of the buccal and palatal bone ridges were determined at the major axis of the tooth. The buccal bone thickness was measured across five lines. The first was at the level of line E. The second was at the most apical point of the tooth, and the other three lines were equidistant between the apical and the cervical lines, and parallel to them. Statistical analysis was performed with a significance level of P≤0.05 for the bone thickness means and standard deviations per tooth and patient for the five lines at varying depths.

Results: The means of the buccal wall thicknesses in the central incisors, lateral incisors and canines were 1.14±0.65 mm, 0.95±0.67 mm and 1.15±0.68 mm, respectively. Additionally, only on the left side were significant differences in some measurements of buccal bone thickness observed according to age and gender. However, age and gender did not show significant differences in heights between the palatal and buccal plates. In a few cases, the buccal wall had a greater height than the palatal wall.

Conclusions: Less than 10% of sites showed more than a 2-mm thickness of the buccal bone wall, with the exception of the central incisor region, wherein 14.4% of cases were ≥2 mm.

No MeSH data available.


Related in: MedlinePlus

Analyses of buccal bone wall thicknesses in a sagittal cut of a CBCT scan at the labelled parallel lines. Line A1-A2 was located in the most apical tooth portion; Line E1-E2 was located at the level of both bone crests; Lines B, C and D were distributed equidistantly and parallel to each other in the space between lines A1-A2 and E1-E2.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4635437&req=5

f1: Analyses of buccal bone wall thicknesses in a sagittal cut of a CBCT scan at the labelled parallel lines. Line A1-A2 was located in the most apical tooth portion; Line E1-E2 was located at the level of both bone crests; Lines B, C and D were distributed equidistantly and parallel to each other in the space between lines A1-A2 and E1-E2.

Mentions: After this, the buccal bone thickness was measured through five lines perpendicular to the major axis (Figure 1). The first line was located at the level of both bone crests (E). The second line (A) was located in the most apical portion of the tooth parallel to line E. Then, the space between the lines A and E was divided equidistantly by three more parallel lines (B, C, D). The five measurement lines are labeled A1-A2, B1-B2, C1-C2, D1-D2 and E1-E2 in Figure 1. Determining the buccal bone wall thickness of each tooth at five different heights provided a more accurate description of the region to be analyzed. To achieve a more detailed description of the buccal wall region, an analysis of potential significant correlations with study variables, including gender, side and age range, was performed.


Assessment of buccal bone thickness of aesthetic maxillary region: a cone-beam computed tomography study.

Fuentes R, Flores T, Navarro P, Salamanca C, Beltrán V, Borie E - J Periodontal Implant Sci (2015)

Analyses of buccal bone wall thicknesses in a sagittal cut of a CBCT scan at the labelled parallel lines. Line A1-A2 was located in the most apical tooth portion; Line E1-E2 was located at the level of both bone crests; Lines B, C and D were distributed equidistantly and parallel to each other in the space between lines A1-A2 and E1-E2.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4635437&req=5

f1: Analyses of buccal bone wall thicknesses in a sagittal cut of a CBCT scan at the labelled parallel lines. Line A1-A2 was located in the most apical tooth portion; Line E1-E2 was located at the level of both bone crests; Lines B, C and D were distributed equidistantly and parallel to each other in the space between lines A1-A2 and E1-E2.
Mentions: After this, the buccal bone thickness was measured through five lines perpendicular to the major axis (Figure 1). The first line was located at the level of both bone crests (E). The second line (A) was located in the most apical portion of the tooth parallel to line E. Then, the space between the lines A and E was divided equidistantly by three more parallel lines (B, C, D). The five measurement lines are labeled A1-A2, B1-B2, C1-C2, D1-D2 and E1-E2 in Figure 1. Determining the buccal bone wall thickness of each tooth at five different heights provided a more accurate description of the region to be analyzed. To achieve a more detailed description of the buccal wall region, an analysis of potential significant correlations with study variables, including gender, side and age range, was performed.

Bottom Line: Additionally, only on the left side were significant differences in some measurements of buccal bone thickness observed according to age and gender.However, age and gender did not show significant differences in heights between the palatal and buccal plates.In a few cases, the buccal wall had a greater height than the palatal wall.

View Article: PubMed Central - PubMed

Affiliation: Research Centre in Dental Sciences (CICO), Universidad de La Frontera Dental School, Temuco, Chile.

ABSTRACT

Purpose: The aim of this study was to analyze the anatomical dimensions of the buccal bone walls of the aesthetic maxillary region for immediate implant placement, based upon cone-beam computed tomography (CBCT) scans in a sample of adult patients.

Methods: Two calibrated examiners analyzed a sample of 50 CBCT scans, performing morphometric analyses of both incisors and canines on the left and right sides. Subsequently, in the sagittal view, a line was traced through the major axis of the selected tooth. Then, a second line (E) was traced from the buccal to the palatal wall at the level of the observed bone ridges. The heights of the buccal and palatal bone ridges were determined at the major axis of the tooth. The buccal bone thickness was measured across five lines. The first was at the level of line E. The second was at the most apical point of the tooth, and the other three lines were equidistant between the apical and the cervical lines, and parallel to them. Statistical analysis was performed with a significance level of P≤0.05 for the bone thickness means and standard deviations per tooth and patient for the five lines at varying depths.

Results: The means of the buccal wall thicknesses in the central incisors, lateral incisors and canines were 1.14±0.65 mm, 0.95±0.67 mm and 1.15±0.68 mm, respectively. Additionally, only on the left side were significant differences in some measurements of buccal bone thickness observed according to age and gender. However, age and gender did not show significant differences in heights between the palatal and buccal plates. In a few cases, the buccal wall had a greater height than the palatal wall.

Conclusions: Less than 10% of sites showed more than a 2-mm thickness of the buccal bone wall, with the exception of the central incisor region, wherein 14.4% of cases were ≥2 mm.

No MeSH data available.


Related in: MedlinePlus