AimThe aim of this investigation was to estimate the prevalence, severity and extent of mid‐buccal gingival recessions (GRs; classified according to the 2018 Classification System) and to identify their risk indicators in the South American population.Materials and MethodsEpidemiological data from two cross‐sectional studies—performed on 1070 South American adolescents and 1456 Chilean adults—were obtained. All participants received a full‐mouth periodontal examination by calibrated examiners. GR prevalence was defined as the presence of at least one mid‐buccal GR ≥ 1 mm. GRs were also categorized into different recession types (RTs) according to the 2018 World Workshop Classification System. Analyses for RT risk indicators were also performed. All analyses were carried out at the participant level.ResultsThe prevalence of mid‐buccal GRs was 14.1% in South American adolescents and 90.9% in Chilean adults. In South American adolescents, the prevalence of RTs was 4.3% for RT1 GRs, 10.7% for RT2 GRs and 1.7% for RT3 GRs. In Chilean adults, the prevalence of RT1 GRs was 0.3%, while the prevalence of RT2 and RT3 GRs was 85.8% and 77.4%, respectively. Full‐Mouth Bleeding Score (FMBS; <25%) was associated with the presence of RT1 GRs in adolescents. The risk indicators for RT2/RT3 GRs mainly overlapped with those for periodontitis.ConclusionsMid‐buccal GRs affected 14.1% of South American adolescents, whereas they affected most of the Chilean adult population (>90%). While RT1 GRs are more commonly observed in a non‐representative cohort of South American adolescents (when compared to Chilean adults), the majority of Chilean adults exhibit RT2/RT3 GRs.
La adecuada selección y estudio de las parejas que ingresan a los Programas de Reproducción Asistida garantiza los resultados en cuanto a tasas de embarazo y bebes en casa. La preparación de estas parejas consta en la mujer de un estudio cuidadoso de la función endocrina como es el conocer la reserva ovárica, el descartar patología utero-tubárica como el hidrosalpinx, la endometriosis, alteraciones del canal endocervical o de la cavidad endometrial. En el varón la presencia de alteraciones de los parámetros seminales pueden conducir desde una falla en la fertilización hasta infección en los sistemas de cultivos, y su cuidadosa evaluación optimiza los resultados. Siguiendo este protocolo estricto hemos logrado incrementar de manera importante nuestras tasas de gestación en un 13% (de 21% en 1995 y 1996 a 34% en 1997) por ciclo, lo que nos motiva a presentarlo.
Objectives: To quantify the buccal bone thickness, area, and perimeter following guided bone regeneration (GBR) using stabilizing periosteal sutures. The loss in hard tissue volume may impair proper implant placement. GBR has been used to regenerate the lost alveolar ridge prior to or at the same time as dental implant placement. The most important factor for GBR success is graft stability. The periosteal mattress suture (PMS) stabilizing technique is an alternative to pins and screws to stabilize bone grafting material and has the advantage of not requiring the removal of the fixing devices. Materials and Methods: A CBCT was acquired before and 6 months after surgery from six patients who underwent GBR with the PMS stabilizing technique. Images were analyzed for buccal bone thickness, area, and perimeter. Results: The mean change in buccal bone thickness was 3.42 mm (± 1.31 SD) and proved statistically significant (P = .005). The mean change in bone crest area also proved statistically significant (P = .001). No significant difference was found in bone perimeter (P = .12). Conclusions: The PMS technique delivered optimal results without clinical complications. This study shows the potential of this technique as an alternative to pins or screws for graft stabilization in the esthetic zone.
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