The Influence of the Crown-implant Ratio on the Crestal Bone Level and Implant Secondary Stability
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|ClinicalTrials.gov Identifier: NCT03471000|
Recruitment Status : Completed
First Posted : March 20, 2018
Last Update Posted : March 21, 2018
|Condition or disease||Intervention/treatment||Phase|
|Partial Edentulism Tooth Loss||Other: Short implants Treatment Other: Regular implants Treatment||Not Applicable|
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.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||30 participants|
|Intervention Model:||Parallel Assignment|
|Official Title:||The Influence of the Crown-implant Ratio on the Crestal Bone Level and Implant Secondary Stability - 36 Months Clinical Study|
|Actual Study Start Date :||January 1, 2012|
|Actual Primary Completion Date :||January 1, 2016|
|Actual Study Completion Date :||January 1, 2016|
Experimental: Short implants Treatment
Group 2 (G2; n=15 patients) had short implants (OsseoSpeed ™ L6mm Ø4 mm) [DENTSPLY Implants, Waltham, MA, USA] placed without sinus lift and augmentation procedure.
Other: Short implants Treatment
Short implants are placed in the alveolar bone and a clinical Ostell and Periotest evaluation of the implants after a period of time is done. Analysis of periapical radiographs and CBCT images after a period of time. Bone around the implant was measured, marginal bone level loss is determined.
Active Comparator: Regular Implants Treatment
Group 1 (G1; n=15 patients) had conventional dental implants (OsseoSpeed ™ L11 Ø4 mm and L13 Ø4 mm) [DENTSPLY Implants, Waltham, MA, USA] placed, preceded by the sinus lift procedure from a lateral window approach with the application of the xenogeneic bone graft Geistlich Bio-Oss® [Geistlich AG, Wolhusen, Switzerland]. The lateral window approach sinus lift surgery was performed 6 weeks prior to the implant placement by the same surgeon.
Other: Regular implants Treatment
Sinus lift procedure is done and regular implants are placed in the alveolar bone and a clinical Ostell and Periotest evaluation of the implants after a period of time is done. Analysis of periapical radiographs and CBCT images after a period of time. Bone around the implant was measured, marginal bone level loss is determined.
- Clinical measurement of implant stability [ Time Frame: 36 months ]Evaluation of implant secondary stability in both groups. Stability measured and evaluated with Periotest(R) device - after 36 months.
- Radiological measurement of marginal bone loss around implant [ Time Frame: 36 months ]Evalation if there is difference in marginal bone level around the implants in both groups. Periapical radiographs and CBCT images taken and the begining and at the end of the observation period will be compared and bone level will be measured. Loss of marginal bone will be calculated.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03471000
|Principal Investigator:||Marzena Dominiak, Prof||Medical University Wrocław|