Luigi Canullo1, Maria Menini2, Ugo Covani3, Paolo Pesce4. 1. Private practice, Rome, Italy. 2. Assistant Professor, Department of Surgical Sciences, Implant and Prosthetic Dentistry Unit, University of Genoa, Genoa, Italy. 3. Full Professor, Istituto Stomatologico Toscano, Camaiore, Italy. 4. Research Fellow, Department of Surgical Sciences, Implant and Prosthetic Dentistry Unit, University of Genoa, Genoa, Italy. Electronic address: paolo.pesce@unige.it.
Abstract
STATEMENT OF PROBLEM: Whether increasing the space for peri-implant soft tissues by using implant systems with conical or convergent transmucosal components would improve tissue stability and esthetics is unclear. PURPOSE: The purpose of this prospective clinical study was to evaluate the clinical and esthetic outcomes of using tissue-level implants with a convergent collar in the esthetic zone that had been rehabilitated following the biological oriented preparation technique (BOPT) approach after a 3-year follow-up period. MATERIAL AND METHODS: Sixteen participants with at least 1 nonrestorable tooth in the maxillary anterior region or with congenitally missing maxillary lateral incisors were enrolled, and tissue-level implants with a convergent collar were inserted 3 months after extraction. The implants were restored with cemented single crowns designed according to the BOPT protocol. Bone resorption and the pink esthetic score were evaluated over a 3-year period. RESULTS: Fifteen participants (mean age: 54.6 years) were evaluated over the 3-year period (total: 16 implants). One participant with 1 implant relocated dropped out of the study. The 3-year implant cumulative survival rate was 100%. The mean ±standard deviation bone-level change was 0.071 ±0.11 mm. The mean pink esthetic score was 8.5 ±1.59, range 4-10. CONCLUSIONS: The use of the BOPT protocol to restore tissue-level implants with a convergent collar achieved good esthetic results and maintained stable soft and hard peri-implant tissues.
STATEMENT OF PROBLEM: Whether increasing the space for peri-implant soft tissues by using implant systems with conical or convergent transmucosal components would improve tissue stability and esthetics is unclear. PURPOSE: The purpose of this prospective clinical study was to evaluate the clinical and esthetic outcomes of using tissue-level implants with a convergent collar in the esthetic zone that had been rehabilitated following the biological oriented preparation technique (BOPT) approach after a 3-year follow-up period. MATERIAL AND METHODS: Sixteen participants with at least 1 nonrestorable tooth in the maxillary anterior region or with congenitally missing maxillary lateral incisors were enrolled, and tissue-level implants with a convergent collar were inserted 3 months after extraction. The implants were restored with cemented single crowns designed according to the BOPT protocol. Bone resorption and the pink esthetic score were evaluated over a 3-year period. RESULTS: Fifteen participants (mean age: 54.6 years) were evaluated over the 3-year period (total: 16 implants). One participant with 1 implant relocated dropped out of the study. The 3-year implant cumulative survival rate was 100%. The mean ±standard deviation bone-level change was 0.071 ±0.11 mm. The mean pink esthetic score was 8.5 ±1.59, range 4-10. CONCLUSIONS: The use of the BOPT protocol to restore tissue-level implants with a convergent collar achieved good esthetic results and maintained stable soft and hard peri-implant tissues.
Authors: Maria Menini; Francesco Bagnasco; Ivan Calimodio; Nicolò Di Tullio; Francesca Delucchi; Domenico Baldi; Francesco Pera Journal: Biomed Res Int Date: 2020-08-05 Impact factor: 3.411
Authors: María Costa Castillo; Martín Laguna Martos; Rocío Marco Pitarch; Marina García Selva; Silvia Del Cid Rodríguez; Carla Fons-Badal; Rubén Agustín Panadero Journal: Int J Environ Res Public Health Date: 2022-03-15 Impact factor: 3.390