Implant Placement in the Atrophic Posterior Maxilla With Sinus Elevation Without Bone Grafting: A 2-Year Prospective Study

Abstract

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Comparative efficacy of osteotome versus CAS kit-assisted indirect maxillary sinus lift and immediate implant placement in posterior atrophic maxilla: A clinico-radiological study

“…This is in accordance with the study by Rajkumar et al, in which the residual bone height was 4 to 7.5 mm for a sinus lift. 8 A study performed by Lai et al, found RBH was 5.6AE2.5 mm for the subjects without graft and 4.7AE2.1 mm for graft subjects. 9 However, the study performed by Movahedian Attar et al, included patients with higher range of residual bone in between 4.8 to 11 mm (a mean value of 7.9AE1.27) 10 Placing an implant in the atrophic maxilla is a time-challenging procedure as it has to be done meticulously without perforation of the sinus membrane.…”

Maxillary sinus reaction to dental implant based on CBCT

“…Основой этой дискуссии стали клинические наблюдения, когда после установки дентальных имплантатов в области больших и/или малых коренных зубов верхней челюсти обнаруживалось, что апикальная часть имплантата вышла за пределы кости в верхнечелюстную пазуху и это не повлекло осложнений [ 6 ] . Опираясь на эти примеры, ряд авторов предлагает смягчить требования к объему костной ткани и считает допустимым умышленную установку имплантатов с частичным внедрением/интрузией в верхнечелюстную пазуху [ 7 ] . Одни авторы считают безопасным внедрение только апикальной части, в пределах 1-3 мм [ 8 ] , другие более радикальны -они предлагают использовать методы так называемого безграфтового синус-лифтинга [ 9,10 ] или даже трансантральной установки имплантатов [11][12][13] .…”

Survival Rates of Short Dental Implants (≤6 mm) Used as an Alternative to Longer (>6 mm) Implants for the Rehabilitation of Posterior Partial Edentulism: A Systematic Review of RCTs

“…An interesting technique that has been recently suggested concerning implant placement in the posterior atrophic maxilla, involves drilling of implant sites at various depths to enable apical bone displacement, crestal sinus membrane elevation, and the placement of a spiral-shaped implant longer than pre-surgical radiographic measurements [ 2 ]. It has been reported that implant placement in the atrophic posterior maxilla along with sinus elevation, without using bone grafts may lead to substantial bone formation around the implants at the sinus floor, resulting in successful restorations and negating the need for bone grafts [ 3 ].…”

“…These surgical techniques, as well known, are linked to increased risk of postoperative morbidity high economic cost and prolonged treatment duration and complications [ 4 , 5 ]. For instance, complications that should be taken into account when sinus augmentation is needed for implant placement in the posterior maxilla include tearing of the Schneiderian membrane, antral or nasal penetration, fenestration, dehiscence or perforation of the alveolar bone, bleeding, pain, edema, hemosinus, sinusitis, graft or implant migration in the sinus, and oroantral fistula [ 2 , 3 ]. On the other hand, some surgical procedures might not be allowed in systemically compromised patients [ 6 ].…”