AIM: To describe histologically the early phases of soft tissue healing to implants placed into fresh extraction sockets. MATERIALS AND METHODS: In 16 beagle dogs, 64 3.25-mm-wide cylindrical screw implants were inserted into the distal sockets of the third and fourth lower premolars using a one-stage trans-mucosal healing protocol. Biopsies were then taken at 1, 2, 4 and 8 weeks and prepared for histological examination. RESULTS: One-week specimens showed a junctional epithelium and an underlying loose connective tissue rich in inflammatory cells. At 2 weeks, signs of epithelial proliferation and a more organized connective tissue were observed. At 4 and 8 weeks, inflammation was absent; the epithelium appeared mature and in close contact with the surface of the healing abutment or the implant. The connective tissue was dense in an area close to the implant surface and the fibres were aligned parallel to the implant surface. The soft tissue dimensions at 8 weeks were approximately 5 mm, including about 3-3.5 mm of epithelium and 1-1.5 mm of connective tissue. CONCLUSION: Soft tissue healing to implants placed in fresh extraction sockets may result in a longer epithelial interface than implants placed in a healed ridge.
AIM: To describe histologically the early phases of soft tissue healing to implants placed into fresh extraction sockets. MATERIALS AND METHODS: In 16 beagle dogs, 64 3.25-mm-wide cylindrical screw implants were inserted into the distal sockets of the third and fourth lower premolars using a one-stage trans-mucosal healing protocol. Biopsies were then taken at 1, 2, 4 and 8 weeks and prepared for histological examination. RESULTS: One-week specimens showed a junctional epithelium and an underlying loose connective tissue rich in inflammatory cells. At 2 weeks, signs of epithelial proliferation and a more organized connective tissue were observed. At 4 and 8 weeks, inflammation was absent; the epithelium appeared mature and in close contact with the surface of the healing abutment or the implant. The connective tissue was dense in an area close to the implant surface and the fibres were aligned parallel to the implant surface. The soft tissue dimensions at 8 weeks were approximately 5 mm, including about 3-3.5 mm of epithelium and 1-1.5 mm of connective tissue. CONCLUSION: Soft tissue healing to implants placed in fresh extraction sockets may result in a longer epithelial interface than implants placed in a healed ridge.
Authors: Sanjana S Jain; Danyal A Siddiqui; Sutton E Wheelis; Kelli L Palmer; Thomas G Wilson; Danieli C Rodrigues Journal: Clin Oral Investig Date: 2020-09-18 Impact factor: 3.573
Authors: Louise Leite Aiquel; João Pitta; Georgios N Antonoglou; Irene Mischak; Irena Sailer; Michael Payer Journal: Clin Oral Implants Res Date: 2021-10 Impact factor: 5.021
Authors: Paolo De Angelis; Paolo Francesco Manicone; Giulio Gasparini; Ilaria De Filippis; Margherita Giorgia Liguori; Silvio De Angelis; Francesca Cannata; Antonio D'Addona Journal: Biomed Res Int Date: 2021-06-14 Impact factor: 3.411