Multiple clinical studies have established high survival rates and tremendous predictability of dental implant treatment. However, a pleasant esthetic outcome is the patient's primary expectation regarding implants in the esthetic zone and several esthetic factors have been evaluated to contribute to an esthetic appearance. Among these, the midfacial soft tissue level is considered to be one of the most important factors; Cosyn and co-workers reported that among factors including soft tissue phenotype, the midfacial recession was associated with the position of the implant . Therefore, subcrestal implant placement has been advocated as it has been associated with the reduction of crestal bone loss in cases with decreased soft tissue thickness. If the vertical soft tissues on the crest of the alveolar ridge are 2 mm or less at the time of implant placement, implants will undergo unavoidable bone resorption by establishing sufficient biologic protection. Another option was proposed by Linkevicius et al, who introduced the subcrestal implant placement as a method to accommodate the problem of thin soft tissues. Research question: Does the placement of delayed implants with different vertical depth affect the marginal bone loss with immediate provisionalization?
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Marginal bone loss
Timeframe: 1 year follow up