scholarly journals Effect of free gingival graft before implant placement on peri-implant health and soft tissue changes: a randomized controlled trial

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Chaoling Zheng ◽  
Shimin Wang ◽  
Hongqiang Ye ◽  
Yunsong Liu ◽  
Wenjie Hu ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Control Group ◽  
Free Gingival Graft ◽  
Implant Placement ◽  
Soft Tissue Thickness ◽  
Significant Difference ◽  
Tissue Changes ◽  
Implant Restoration ◽  
Soft Tissue Changes ◽  
Keratinized Mucosa

Abstract Background To evaluate the clinical outcome and changes in posterior buccal soft tissue following implant restoration in groups with and without a free gingival graft (FGG) before implant placement. Methods Twenty-six individuals who required implant restoration and displayed lack of keratinized mucosa (KM) were recruited and assigned to the FGG group (with FGG before implant placement) or Control group (without FGG before implant placement) randomly. A screw-retained conventional implant restoration was performed for each patient. Peri-implant soft tissue was captured by an intraoral scanner and analyzed by an image processing software. Clinical parameters (plaque index, gingival index, probing depth, and bleeding on probing) were assessed at baseline and 1, 3, 6, and 12 months. Buccal soft tissue changes (mucosal margin, soft tissue thickness, and width of keratinized mucosa) on the buccal side of implant site were assessed at 1, 3, 6, and 12 months. Two-way ANOVA and Bonferroni test were used to analyze significant difference between groups at each time point (α = 0.05). Results The clinical parameters were lower in the FGG group than that in the Control group, although there were no significant differences between the two groups (P > 0.05). Peri-implant soft tissue collapsed and the changes (mucosal margin and soft tissue thickness) were significantly greater in the Control group than the FGG group (P < 0.05). Width of KM was larger in the FGG group than the Control group, although there was no significant difference between the two groups (P > 0.05). Conclusions Minimal peri-implant soft tissue changes occurred in two groups. Performing FGG before implant placement is a viable procedure to maintain peri-implant soft tissue but might not affect peri-implant health during 12 months follow-up. However, small sample size must be considered. Trial registration This study was retrospectively registered in the Chinese Clinical Trial Registry (Registration number: ChiCTR2000037954; Date of registration: 6 September 2020).

scholarly journals The Vertical Soft Tissue Thickness and Subcrestal Implant Placement as Factors for Peri-implant Crestal bone Stability

2021 ◽  
Vol 9 (D) ◽  
pp. 257-263
Author(s):  
Darko Veljanovski ◽  
Aneta Atanasovska-Stojanovska ◽  
Aleksandra Pivkova-Veljanovska ◽  
Eitan Mijiritsky ◽  
Curd Bollen
Keyword(s):  
Soft Tissue ◽  
Bone Loss ◽  
Control Group ◽  
Tissue Thickness ◽  
Implant Placement ◽  
Soft Tissue Thickness ◽  
Crestal Bone Loss ◽  
Bone Level ◽  
Mandibular Region ◽  
To Receive

Aim The aim of this prospective study was to determine the influence of vertical soft tissue thickness on bone level changes in platform-switched implants placed eqicrestally or subcrestally and restored with screw-retained or cement-retained restorations. Methods Platform-switched bone-level implants were placed in a single stage manner in the posterior mandibular region. Implant sites were divided into thick (control) and thin (test) vertical soft tissue groups. The implants in the control group were placed equicrestally. The implant sites from the control group were randomly allocated to receive equicrestally or subcrestally placed implants. Bone remodeling/loss was radiographically measured at baseline, three months postoperatively and six months after delivery of final prosthetic restoration. Results The mean crestal bone loss values three months postoperatively and six months post prosthetic restoration were higher in sites with thin versus sites with thick gingiva. In implant sites with thin gingiva, subcrestally placed implants presented less bone loss than eqicrestally placed implants. Conclusion Platform switched implants are prone to more bone loss when they are placed in sites with thin soft tissue, regardless of the type of final restoration (screw-retained or cement-retained). Subcrestal placement of platform-switched implants can prevent crestal bone loss in sites with vertical soft tissue thickness < 3 mm.    

Accuracy of high-resolution ultrasound (US) for gingival soft tissue thickness mesurement in edentulous patients prior to implant placement

2020 ◽  
pp. 20200309
Author(s):  
Gül Sönmez ◽  
Kıvanç Kamburoğlu ◽  
Ayşe Gülşahı
Keyword(s):  
High Resolution ◽  
Soft Tissue ◽  
Alveolar Process ◽  
Tissue Thickness ◽  
Gingival Thickness ◽  
Implant Placement ◽  
Soft Tissue Thickness ◽  
Significant Difference ◽  
Edentulous Patients ◽  
Clinical Measurements

Objectives: To evaluate and compare the accuracy of high-resolution ultrasound (US) with two different cone beam CT (CBCT) units and clinical assessment for measuring gingival soft tissue thickness in edentulous patients prior to implant placement. Methods and materials: The study consisted of 40 maxillary implant sites of 40 healthy patients (20 females, 20 males; mean age, 47.88 years). We prospectively evaluated labial/buccal gingival thickness in 40 implant regions (16 anterior and 24 posterior) by using limited field of view (FOV) CBCT images and US images in comparison to gold standard transgingival probing measurements. One-way analysis of variance (ANOVA) was used to compare mean measurements obtained from CBCT (Morita and Planmeca), US, and transgingival probing. Interclass correlation coefficient (ICC) estimates were calculated based on means with two-way mixed and absolute-agreement model. Bland Altman plot was used to describe agreement between clinical vs US and CBCT measurements by constructing limits of agreement. Statistical significance was set at p < 0.05. Results: There was no significant difference between methods used according to mean gingival thickness measurements obtained from the top (p = 0.519) and bottom (p = 0.346) of the alveolar process. US and CBCT measurements highly correlated with clinical measurements for both top and bottom alveolar process gingival thickness (p < 0.001). Distribution of differences between clinical measurements and both CBCT measurements showed statistically significant differences according to 0 (p < 0.05). Distribution of differences between clinical measurements and US measurements did not show statistically significant difference (p > 0.05). Conclusion: High-resolution US provided accurate information for the measurement of gingival soft tissue thickness in edentulous patients prior to implant placement.

Soft Tissue Alterations Following Protraction Approaches with and without Rapid Maxillary Expansion

2014 ◽  
Vol 38 (3) ◽  
pp. 277-283 ◽  
Author(s):  
N Canigur Bavbek ◽  
B Balos Tuncer ◽  
T Tortop
Keyword(s):  
Soft Tissue ◽  
Rapid Maxillary Expansion ◽  
Chronological Age ◽  
Control Group ◽  
Class Iii ◽  
Maxillary Expansion ◽  
Upper Lip ◽  
Lateral Cephalograms ◽  
Tissue Changes ◽  
Soft Tissue Changes

The aim of this study was to compare the soft tissue changes influenced by reverse headgear therapy with (RHg+RME) or without (RHg) rapid maxillary expansion with each other and with an untreated Class III control group (C). Study design: RHg group (10 girls, 6 boys, mean chronological age 11.1 years), RHg+RME group (12 girls, 4 boys, mean chronological age 10.8 years) and C group (7 girls, 11 boys, mean chronological age 10.2 years) comprised skeletally Class III patients with maxillary deficiency. Soft tissue measurements were made on lateral cephalograms at the beginning and at the end of the treatment and observation periods. Changes within each group and the differences between the groups were analyzed by paired t-test; the differences between the groups were determined by variance analysis and Duncan test with a significance level p&lt;0.05. Results: The sagittal depth of nose and maxilla, upper lip height and protrusion were significantly increased in treatment groups and the differences were significant when compared to control group (p&lt;0.05). Conclusion: Forward movement of upper lip was more prominent in RHg group. Reverse headgear treatment with or without RME revealed significant soft tissue changes when compared with a growing Class III control group with the same skeletal characteristics.

scholarly journals Propylene mesh versus acrylic resin stent for palatal wound protection following free gingival graft harvesting: a short-term pilot randomized clinical trial

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Nermin Yussif ◽  
Rasha Wagih ◽  
Khaled Selim
Keyword(s):  
Patient Satisfaction ◽  
Soft Tissue ◽  
Healing Process ◽  
Test Group ◽  
Control Group ◽  
Free Gingival Graft ◽  
Randomized Clinical Study ◽  
Wound Protection ◽  
Custom Made ◽  
Significant Difference

Abstract Background Protection of the palatal wound is an essential step following harvesting a palatal soft tissue graft. The aim of the current pilot randomized clinical study was to assess the efficacy of using propylene mesh as protective sheet when compared to conventional custom made acrylic stent after harvesting a palatal graft. The primary outcome of this study was bleeding postoperatively and secondary outcomes were pain, healing profile of the donor site as well as patient satisfaction. Methods Between 2018 and 2019 we conducted a prospective randomized controlled trial of 24 patients with palatal defects. Two groups of 12 patients with 24 sites were included in this study and were treated with soft tissue grafting technique using free grafts harvested from the hard palate. The palatal wounds were protected with propylene mesh (test group) or custom-made acrylic palatal stent (control group). Participants were assessed for the amount and duration of bleeding, pain duration, and the risk of infection 2, 4, 6, 8, 14 days post-operatively. The trial had been registered in clinical trials.gov (NCT04348279). Results Four sites were excluded from the study as dropouts. The polypropylene mesh was more effective at reducing bleeding by (2.4 ± 1.075) and pain by (1.600 ± 0.516), while the custom-made acrylic stent reduced the bleeding (5.8 ± 1.22) and pain (7.100 ± 0.316). The decline in amount of bleeding amount (P value = 0.021) and its duration (P value = 0.001) achieved by the propylene mesh was statistically significant. There was no statistical significant difference in patient satisfaction and the duration of healing process between the 2 groups. However, the healing profile of the test group was statistically significant when compared with the control group (P value = 0.002). Conclusions Propylene mesh is a promising material for protection of the palatal wound due to its light weight, limited bacterial wicking, tissue compatibility. Further studies are required to adequally assess the benefits of this material in periodontal plastic surgeries.

scholarly journals Facial soft-tissue changes after rapid maxillary expansion analyzed with 3-dimensional stereophotogrammetry: A randomized, controlled clinical trial

2016 ◽  
Vol 86 (6) ◽  
pp. 934-942 ◽  
Author(s):  
Asli Baysal ◽  
Mehmet Ali Ozturk ◽  
Ahmet Oguz Sahan ◽  
Tancan Uysal
Keyword(s):  
Treatment Group ◽  
Soft Tissue ◽  
Untreated Control ◽  
Rapid Maxillary Expansion ◽  
Control Group ◽  
Controlled Clinical Trial ◽  
Maxillary Expansion ◽  
Alar Base ◽  
Tissue Changes ◽  
Soft Tissue Changes

ABSTRACT Objective: To evaluate three-dimensional (3-D) soft tissue facial changes following rapid maxillary expansion (RME) and to compare these changes with an untreated control group. Materials and Methods: Patients who need RME as a part of their orthodontic treatment were randomly divided into two groups of 17 patients each. Eligibility criteria included having maxillary transverse deficiency with crossbite, and to be in the normal range according to body mass index. In the first group (mean age  =  13.4 ± 1.2 years), expansion was performed. The second group received no treatment initially and served as untreated control (mean age  =  12.8 ± 1.3 years). Skeletal and soft tissue changes were evaluated using posteroanterior cephalograms and 3-D facial images. The primary outcome of this study was to assess the soft tissue changes. The secondary outcomes were evaluation hard tissue and soft tissue relations. Randomization was done with preprepared random number tables. Blinding was applicable for outcome assessment only. MANOVA, t-test, and correlation analyses were used (P  =  .05). Results: In both groups, there was a general trend of increase for the transverse skeletal measurements, but these increases were more limited in the control group. Alar base width was greater in the treatment group (P  =  .002). Pogonion soft tissue point (P  =  .022) was located more posteriorly in the expansion group compared with the control group. Conclusions: Soft tissue changes between groups were similar, except for the alar base, which became wider in the treatment group. Weak correlations were found between the skeletal and soft tissue changes.

scholarly journals Hard and Soft Tissue Changes After Crestal and Subcrestal Immediate Implant Placement

2011 ◽  
Vol 82 (8) ◽  
pp. 1112-1120 ◽  
Author(s):  
Richard U. Koh ◽  
Tae-Ju Oh ◽  
Ivan Rudek ◽  
Gisele F. Neiva ◽  
Carl E. Misch ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Implant Placement ◽  
Tissue Changes ◽  
Immediate Implant ◽  
Soft Tissue Changes

Effects of Antibiotics on Bone and Soft-Tissue Healing Following Immediate Single-Tooth Implant Placement Into Sites With Apical Pathology

2015 ◽  
Vol 41 (5) ◽  
pp. e202-e211 ◽  
Author(s):  
Bashir Hosseini ◽  
Warren C. Byrd ◽  
John S. Preisser ◽  
Asma Khan ◽  
Derek Duggan ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Bacterial Resistance ◽  
Alveolar Bone ◽  
Controlled Trial ◽  
Double Blind ◽  
Implant Placement ◽  
Bonferroni Adjustment ◽  
Tissue Changes ◽  
Immediate Implant ◽  
Soft Tissue Changes

Overprescription of antibiotics can cause bacterial resistance problems, leading to life-threatening illnesses and public health crises. Clinicians often believe antibiotics can prevent dental implant failure and postoperative complications. In conjunction with implant surgery, antibiotics are therefore routinely prescribed for all cases. In this double-blind, randomized controlled trial, the effects of antibiotics on the clinical outcomes of immediate implant placement upon replacing a tooth with an apical pathology were examined to compare antibiotics (n = 10) and placebo (n = 10). In each subject, a tooth with a chronic apical lesion was extracted, thoroughly curetted, irrigated, and replaced with single implant with a screw-retained custom provisional abutment/crown. Postoperative pain/discomfort was measured at 1- and 4-week postsurgical follow-up visits using visual analog scales. Facial alveolar bone and soft-tissue changes were measured using pre- and postoperative cone-beam computerized tomography and impressions. We found survival rates of 100% (antibiotics) and 78% (control). However, there was no statistical difference in means for any clinical outcome (t tests with Bonferroni adjustment for multiple testing), except for midfacial soft-tissue changes: 0.43 mm (SD, 0.76) in the antibiotics group and 1.70 mm (SD, 1.06) in the placebo group (t15 = −2.89, P = .011). The average change of the midfacial alveolar plate was 0.62 mm (SD, 0.46) and 1.34 mm (SD, 0.91) for the antibiotic and placebo groups, respectively, which did not significantly differ statistically. No significant correlation (Spearman correlation) existed between the changes in facial alveolar bone and the facial gingival margin. Antibiotics appear to have little effect on immediate implant treatment outcomes.

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