Tooth Loss Clinical Trial
Official title:
The Influence of the Crown-implant Ratio on the Crestal Bone Level and Implant Secondary Stability - 36 Months Clinical Study
The aim of the study was to determine whether implant length and the crown-to-implant (C/I) ratio influence implant stability and the loss of the surrounding marginal bone, and whether short implants can be used instead of sinus augmentation procedures.
The patients participating in the study (n=30) had one single tooth implant - a short
(OsseoSpeed™ L6Ø4 mm, Implants) or a regular implant (OsseoSpeed™ L11 and L13Ø4 mm, DENTSPLY
Implants) - placed in the maxilla. The evaluation was based on clinical and radiological
examination.
The crown-to-implant ratio was determined by dividing the length of the crown together with
the abutment by the length of the implant placed crestally. Mean crown-to-implant ratios were
calculated separately for each group and its correlation with the MBL (marginal bone loss)
and stability was assessed. The authors compared the correlation between the C/I ratio
values, MBL and secondary implant stability.
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