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Clinical evaluation of the biological width following surgical crown-lengthening procedure: A prospective study.

Shobha KS - J Indian Soc Periodontol (2010)

Bottom Line: Overall, apical displacement of FGM at TT, AD and NAD sites was statistically significant compared to baseline.The apical displacement of FGM at TT site was more when compared to that at AD and NAD sites at 3 and 6 months.The BW at the TT site was smaller at 1, 3 and 6 months compared to that at baseline.

View Article: PubMed Central - PubMed

Affiliation: Sri Siddhartha Dental College and Hospital, Tumkur, India.

ABSTRACT

Background and objectives: The purpose of this study was to evaluate the positional changes of the periodontal tissues, particularly the biological width, following surgical crown-lengthening in human subjects.

Materials and methods: A clinical trial study involving 15 patients was carried out for a period of 6 months. Sites were divided into 3 groups: treated (TT) sites, adjacent (AD) sites and nonadjacent (NAD) sites. Free gingival margin [FGM], attachment level, pocket depth, bone level, biological width [BW] were recorded at baseline, 1, 3 and 6 months. Direct bone level after flap reflection was recorded before and after osseous resection at baseline only. Level of osseous crest was lowered based on BW, and supracrestal tooth structure needed using a combination of rotary and hand instruments.

Statistical analysis: Student t test and ANOVA were used.

Results: Overall, apical displacement of FGM at TT, AD and NAD sites was statistically significant compared to baseline. The apical displacement of FGM at TT site was more when compared to that at AD and NAD sites at 3 and 6 months. The BW at the TT site was smaller at 1, 3 and 6 months compared to that at baseline. However, at all sites, BW was reestablished to the baseline value at the end of 6 months.

Interpretation and conclusion: The BW at TT sites was reestablished to its original vertical dimension by 6 months. In addition, a consistent 2-mm gain of coronal tooth structure was observed at the 1, 3 and 6-month examinations.

No MeSH data available.


Related in: MedlinePlus

Free gingival margin measurement at the treated site (at 6 months)
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Figure 0015: Free gingival margin measurement at the treated site (at 6 months)

Mentions: The patients were evaluated clinically at 1, 3 and 6 months post-surgery [Figures 15–18].


Clinical evaluation of the biological width following surgical crown-lengthening procedure: A prospective study.

Shobha KS - J Indian Soc Periodontol (2010)

Free gingival margin measurement at the treated site (at 6 months)
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3100858&req=5

Figure 0015: Free gingival margin measurement at the treated site (at 6 months)
Mentions: The patients were evaluated clinically at 1, 3 and 6 months post-surgery [Figures 15–18].

Bottom Line: Overall, apical displacement of FGM at TT, AD and NAD sites was statistically significant compared to baseline.The apical displacement of FGM at TT site was more when compared to that at AD and NAD sites at 3 and 6 months.The BW at the TT site was smaller at 1, 3 and 6 months compared to that at baseline.

View Article: PubMed Central - PubMed

Affiliation: Sri Siddhartha Dental College and Hospital, Tumkur, India.

ABSTRACT

Background and objectives: The purpose of this study was to evaluate the positional changes of the periodontal tissues, particularly the biological width, following surgical crown-lengthening in human subjects.

Materials and methods: A clinical trial study involving 15 patients was carried out for a period of 6 months. Sites were divided into 3 groups: treated (TT) sites, adjacent (AD) sites and nonadjacent (NAD) sites. Free gingival margin [FGM], attachment level, pocket depth, bone level, biological width [BW] were recorded at baseline, 1, 3 and 6 months. Direct bone level after flap reflection was recorded before and after osseous resection at baseline only. Level of osseous crest was lowered based on BW, and supracrestal tooth structure needed using a combination of rotary and hand instruments.

Statistical analysis: Student t test and ANOVA were used.

Results: Overall, apical displacement of FGM at TT, AD and NAD sites was statistically significant compared to baseline. The apical displacement of FGM at TT site was more when compared to that at AD and NAD sites at 3 and 6 months. The BW at the TT site was smaller at 1, 3 and 6 months compared to that at baseline. However, at all sites, BW was reestablished to the baseline value at the end of 6 months.

Interpretation and conclusion: The BW at TT sites was reestablished to its original vertical dimension by 6 months. In addition, a consistent 2-mm gain of coronal tooth structure was observed at the 1, 3 and 6-month examinations.

No MeSH data available.


Related in: MedlinePlus