Technical and Biological Complications Related to Crown to Implant Ratio

Abstract

Despite the limited data, high C/I ratio may be related to some prosthetic failures. Unfavorable C/I ratio does not affect biological complications and implant failure.

Biomechanical influence of crown-to-implant ratio on stress distribution over internal hexagon short implant: 3-D finite element analysis with statistical test

“…Crown to implant ratio was evaluated in systematic reviews (Quaranta et al, 2014;Garaicoa-Pazmiño et al, 2014). A systematic review indicated that the prosthesist should provide careful planning with the implant-abutment interface when rehabilitating dental implants with unfavorable ratios C/I (Quaranta et al, 2014).…”

Is there an effect of crown‐to‐implant ratio on implant treatment outcomes? A systematic review

“…The main reason for exclusion of articles was the fact that reporting of crown‐to‐implant ratio was not dealing with single‐tooth restorations (short implants were splinted to other short implants or splinted to longer implants) or data of single‐tooth restorations could not be extracted. Earlier systematic reviews on influence of crown‐to‐implant ratio (Blanes, 2009; Esfahrood et al., 2017; Garaicoa‐Pazmiño et al., 2014; Quaranta et al., 2014) included higher numbers of articles, but admitted that various restoration designs were present, with no distinction between splinted and nonsplinted crowns, making interpretation difficult. The authors of the present systematic review have the opinion that analyzing influence of crown‐to‐implant ratio should be done with single, nonsplinted, implant‐supported restorations.…”

“…Systematic reviews of Blanes (2009), Quaranta, Piemontese, Rappelli, Sammartino, and Procaccini (2014), and Esfahrood, Ahmadi, Karami, and Asghari (2017) revealed that high crown‐to‐implant ratios did not have an impact on peri‐implant bone loss; however, Garaicoa‐Pazmiño et al. (2014) reported as a result of their systematic review that the higher the crown‐to‐implant ratio the less the peri‐implant bone loss.…”

“…In the systematic review of Blanes (2009), it was mentioned that there was no association between crown‐to‐implant ratio and technical complications, but, contrary, Quaranta et al. (2014) reported that high crown‐to‐implant ratios could lead to technical failures. All authors of these systematic reviews stated, however, that the included studies were reporting on various restoration designs, with no distinction between splinted and nonsplinted crowns, making interpretation and solid conclusions difficult.…”

Funktionelle Rehabilitation des Kauorgans bei Teilbezahnung und abgesunkener vertikaler Dimension

“…mit einem erhöhten periimplantären marginalen Knochenabbau assoziiert sind[9][10][11]. Zur Stabilisierung bzw.…”