Clinical and Radiographic Outcomes of Resective Surgery with Adjunctive Implantoplasty Over a 6- to 11-Year Follow-up: A Case Series.

OBJECTIVES: The aim of the present case series is to exhibit the long-term clinical and radiographic outcomes of resective surgery with adjunctive implantoplasty over a 6-to-11-year follow-up. MATERIALS AND METHODS: Four patients presenting 4 implants diagnosed with peri-implantitis according a to an established case definition were included in the present case series. Subjects underwent resective surgery, a modified implantoplasty approach, and implant surface decontamination. Clinical and radiographic outcomes such as bleeding on probing (BOP), suppuration on probing (SoP), probing depth (PD), marginal recession (MR), modified plaque index (mPI), and marginal bone levels (MBL) were recorded over a long-term following surgical therapy. RESULTS: Over 6-to-11-year follow-up, mean BOP, PD, and SoP scores amounted to 17 ±24%, 2.5 ±1.26 mm, and 0%, respectively. BOP scores were reduced in 17%, PD values in 2.5mm, and SoP scores in 100%. Radiographic analysis revealed a mean radiographic bone gain of 3.1 ± 1.84 mm. Peri-implant marginal bone loss surface area decreased by 5.7±3.77mm2 over the long-term follow-up. CONCLUSION: Resective therapy with adjunctive implantoplasty promoted favorable clinical and radiographic outcomes at peri-implantitis treated sites over a long-term period. CLINICAL RELEVANCE: Diverse surgical approaches such as resective, reconstructive, and combined therapy have been proposed towards peri-implantitis treatment. A resective surgical approach with an adjunctive "modified" implantoplasty refers to the modification of the implant body into a constricted area to mimic a "waist" silhouette. This modified technique conforms an adequate concave smooth area that may favor the outcomes of resective surgical therapy for soft tissue adaptation, biofilm control, and possible peri-implant bone gain over the long term.

Influência da elevação do retalho, durante a instalação de implantes imediatos, na remodelação óssea peri-implantar / Influence of flap elevation during immediate implant placement on peri-implant bone remodeling

Verificar a influência dos retalhos cirúrgicos na formação óssea peri-implantar. Métodos: quatro pré-molares da arcada inferior de sete cães, de raça não definida, foram extraídos, e quatro implantes imediatos foram instalados. Os grupos foram divididos em G1, sem retalho, e G2, com elevação de retalho de espessura total, totalizando 14 implantes em cada grupo. Após quatro meses, realizou-se a coleta das amostras e a análise histomorfométrica, a fim de se observar contato osso-implante (BIC) vestibular, BIC total, área vestibular e área total de todos os implantes. Para análise estatística intergrupos utilizou-se o teste de Mann-Whitney (p < 0,05). Resultados: observou-se que o grupo referente aos implantes instalados sem elevação de retalho apresentou melhores taxas de BIC, tanto na face vestibular quanto no BIC total. Os dados também mostraram-se superiores estatisticamente em prol do grupo sem retalho, quanto à área óssea na face vestibular dos implantes. Conclusão: conclui-se que a técnica cirúrgica sem retalho têm influência favorável na formação óssea ao redor dos implantes...

The aim of this study was to assess the influence of surgical flaps over boneformation around implants. Methods: Seven mongrel dogs had four mandibular pre-molars extracted and four immediate implants placed. The experimental groups were divided into G1 (flapless) and G2 (full-thickness flap), totaling 14 implants in each group. After four months, samples were collected and histomorphometric analysis was carried out with a view to assessing buccal bone-to-implant contact (BIC), total BIC, buccal area, and total area of all implants. For intergroup statistical analysis, Mann-Whitney test was applied (p < 0.05). Results: The group comprising implants without flap elevation had better BIC rates, both buccal and total BIC, than the flap elevation group. Additionally,data yielded better results in favor of the group without flap, which was statistically significant, particularly with regard to bone formation on the buccal surface of implants. Conclusion: The flapless surgical technique produces favorable effects on bone formation around implants...

Otimização da regeneração óssea guiada em alvéolo pós-extração, por meio da técnica de Fugazzoto / Optimization of guided bone regeneration in post-extraction socket by means of the Fugazzoto technique

Introdução: durante o planejamento cirúrgico da reabilitação protética usando implantes osseointegráveis, é comum nos depararmos com limitações, como com seios maxilares pneumatizados. Nessas ocasiões, podemos lançar mão de procedimentos de regeneração alveolar e enxertia óssea. Métodos: entre as várias técnicas existentes, esse artigo discute e apresenta uma possibilidade de regeneração alveolar, por meio de um relato de caso. Resultados: foi obtido um ganho ósseo considerável, que possibilita a instalação do implante sem mais nenhum procedimento de enxertia. Conclusão: notou-se uma boa previsibilidade com a regeneração óssea guiada e a otimização do tratamento cirúrgico...

Introduction: During the surgical planning for prosthetic rehabilitation performed by means of osseointegrated implants, we often face some limitations such as pneumatized maxillary sinus, in which case we can make use of alveolar regeneration and bone grafting procedures. Objective: This article discusses and reports a case of alveolar regeneration. Results: Treatment resulted in bone gain that allows implant placement without further grafting procedures. Conclusion: Guided bone regeneration (GBR) provided predictability and optimization of surgical treatment...