Kazushige Tanaka1, Giovanna Iezzi2, Adriano Piattelli3, Mauro Ferri4, Natalia Fortich Mesa5, Karol Alí Apaza Alccayhuaman6, Daniele Botticelli7. 1. Researcher, Department of Oral Implantology, Osaka Dental University, Osaka, Japan. 2. Associate Professor, Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy. 3. Full Professor, Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy. 4. Docente Auxiliar II, Facultad ciencias de la salud, Programa de Odontología, Universidad Rafael Núñez, Cartagena de Indias, Colombia. 5. Docente con Función de Coordinación en Investigación, Programa de Odontología, Corporación Universitaria Rafael Nuñez, Cartagena de Indias, Colombia. 6. Research Affiliate at ARDEC Academy, Rimini, Italy. 7. Private Practice and Principal Researcher at ARDEC Academy, Ariminum Odontologica, Rimini, Italy.
Abstract
OBJECTIVES: To compare the histomorphometric outcomes of biopsies collected from the antrostomy and from the alveolar crest of the maxillary sinus after a sinus-lift procedure. MATERIAL AND METHODS: In 12 volunteers, sinus floor elevation was performed using collagenated corticocancellous porcine bone. Nine months after the surgery, 2 biopsies, 1 from the alveolar crest and 1 from the antrostomy, were collected for histological analysis. RESULTS: Biopsies from 11 patients were available for histological analyses (n = 11). At the alveolar crest sites, the percentage of mineralized bone was 40.1 ± 14.1%, of bone marrow was 40.1 ± 18.0%, and of the xenograft was 14.7 ± 15.2%. Small amounts of soft tissue were found. At the antrostomy sites, the percentages of mineralized bone, bone marrow, and xenograft were 26.0 ± 10.8%, 23.4 ± 17.0%, and 28.2 ± 15.7%, respectively. Soft tissue was represented by 19.7 ± 19.4%. CONCLUSION: Higher amounts of mineralized bone and bone marrow were found in the alveolar crest compared with the antrostomy.
OBJECTIVES: To compare the histomorphometric outcomes of biopsies collected from the antrostomy and from the alveolar crest of the maxillary sinus after a sinus-lift procedure. MATERIAL AND METHODS: In 12 volunteers, sinus floor elevation was performed using collagenated corticocancellous porcine bone. Nine months after the surgery, 2 biopsies, 1 from the alveolar crest and 1 from the antrostomy, were collected for histological analysis. RESULTS: Biopsies from 11 patients were available for histological analyses (n = 11). At the alveolar crest sites, the percentage of mineralized bone was 40.1 ± 14.1%, of bone marrow was 40.1 ± 18.0%, and of the xenograft was 14.7 ± 15.2%. Small amounts of soft tissue were found. At the antrostomy sites, the percentages of mineralized bone, bone marrow, and xenograft were 26.0 ± 10.8%, 23.4 ± 17.0%, and 28.2 ± 15.7%, respectively. Soft tissue was represented by 19.7 ± 19.4%. CONCLUSION: Higher amounts of mineralized bone and bone marrow were found in the alveolar crest compared with the antrostomy.