scholarly journals Peri-implant soft and hard tissue condition after alveolar ridge preservation with beta-tricalcium phosphate/type I collagen in the maxillary esthetic zone: A 1-year follow-up study

2020 ◽  
Vol 77 (1) ◽  
pp. 22-28
Author(s):  
Tamara Jurisic ◽  
Marija Milic ◽  
Vladimir Todorovic ◽  
Marko Zivkovic ◽  
Milan Jurisic ◽  
...  

Background/Aim. Alveolar ridge dimensional alterations following tooth extraction in the anterior maxilla often result in an inadequate bone volume for a correct implant placement. In order to obtain optimal bone volume various bone graft substitutes have become commercially available and widely used for socket grafting. The aim of this study was to examine and compare long-term clinical outcomes of dental implant therapy in the maxillary esthetic zone, after socket grafting with beta-tricalcium phosphate (TCP) combined with collagen type I, either with or without barrier membrane and flap surgery, after a 12-month follow-up. Methods. Twenty healthy patients were allocated to either C group (beta-TCP and type I collagen without mucoperiosteal flap coverage) or C+M group (beta-TCP and type I collagen barrier membrane with mucoperiosteal flap coverage). Following clinical parameters were assessed: implant stability (evaluated by a resonance frequency analysis ? RFA), periimplant soft tissue stability (sulcus bleeding index ? SBI, Mombelli sulcus bleeding index ? MBI, periimplant sulcus depth, keratinized gingiva width, gingival level) and marginal bone level at the retroalveolar radiograms. Results. Within C+M group, RFA values significantly increased 12 weeks after implant installation compared to primary RFA values. Comparison between investigated groups showed a significantly reduced keratinized gingiva width in the C+M group compared to the C group after 3, 6, 9 and 12 months. Comparison between groups revealed significantly lower gingival level values in the C+M group at 9th and 12th month when compared to the C group. Conclusion. Implant treatment in the anterior maxilla could be effective when using a 9 months alveolar ridge preservation healing with combined treatment with beta-tricalcium phosphate and type I collagen, with regard to the peri-implant soft and hard tissue stability.

2021 ◽  
Vol 5 (4) ◽  
pp. 49-60
Author(s):  
Kankipati Amrutha ◽  
Rupasree Gundala ◽  
YSHS Chakravarthy Reddy ◽  
Dalli Bharath Simha Reddy ◽  
Putta Sri Krishna Chaitanya ◽  
...  

2020 ◽  
Vol 46 (5) ◽  
pp. 515-525 ◽  
Author(s):  
Arturas Stumbras ◽  
Gintaras Januzis ◽  
Albinas Gervickas ◽  
Ricardas Kubilius ◽  
Gintaras Juodzbalys

The aim of this study was to compare bone regeneration in the anterior maxilla between bone substitutes and autologous platelet concentrate in alveolar ridge preservation. Forty patients requiring tooth extraction in the anterior maxilla were randomly allocated to the following 4 treatment modalities: spontaneous healing (control), natural bovine bone mineral covered with resorbable native collagen membrane (BBM/CM), freeze-dried bone allograft covered with resorbable native collagen membrane (FDBA/CM), and plasma rich in growth factors (PRGF) alone. Bone biopsies and histomorphometrical analysis were performed after 3 months of healing. The following parameters were assessed: newly formed mineralized tissue, newly formed nonmineralized tissue, and residual bone-grafting material (if applicable). Statistical analysis was performed to provide descriptive analysis and to compare the parameters of the bone regeneration between the study groups. Histomorphometrical analysis revealed the highest new mineralized tissue formation in the PRGF group. Statistically significant differences in new mineralized tissue formation were found between control/PRGF (46.4% ± 15.2% vs 75.5% ± 16.3%), control/(BBM/CM) (46.4% ± 15.2% vs 20.3% ± 21.9%), control/(FDBA/CM) (46.4% ± 15.2% vs 7.2% ± 8.6%), PRGF/(BBM/CM) (75.5% ± 16.3% vs 20.3% ± 21.9%), and PRGF/(FDBA/CM) (75.5% ± 16.3% vs 7.2% ± 8.6%) groups. The new mineralized tissue formation was in the following order: PRGF > control > BBM > FDBA. Alveolar ridge preservation in the esthetic zone with PRGF was the most effective for bone regeneration of the alveolar ridge.


2018 ◽  
Vol 6 (3) ◽  
pp. 27 ◽  
Author(s):  
Minas Leventis ◽  
George Agrogiannis ◽  
Peter Fairbairn ◽  
Orestis Vasiliadis ◽  
Danai Papavasileiou ◽  
...  

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