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| Name | Class |
|---|---|
| Dentsply Sirona Implants and Consumables | INDUSTRY |
| Wroclaw Medical University | OTHER |
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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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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Short implants Treatment | Experimental | 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. |
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| Regular Implants Treatment | Active Comparator | 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. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Short implants Treatment | Other | 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. |
| Measure | Description | Time Frame |
|---|---|---|
| Clinical measurement of implant stability | Evaluation of implant secondary stability in both groups. Stability measured and evaluated with Periotest(R) device - after 36 months. | 36 months |
| Measure | Description | Time Frame |
|---|---|---|
| Radiological measurement of marginal bone loss around implant | 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. | 36 months |
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Inclusion Criteria:
Additional inclusion criteria were as follows:
Exclusion Criteria:
-
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| Name | Affiliation | Role |
|---|---|---|
| Marzena Dominiak, Prof | Medical University Wrocław | Principal Investigator |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 29862269 | Result | Hadzik J, Krawiec M, Slawecki K, Kunert-Keil C, Dominiak M, Gedrange T. The Influence of the Crown-Implant Ratio on the Crestal Bone Level and Implant Secondary Stability: 36-Month Clinical Study. Biomed Res Int. 2018 May 16;2018:4246874. doi: 10.1155/2018/4246874. eCollection 2018. |
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| ID | Term |
|---|---|
| D016388 | Tooth Loss |
| ID | Term |
|---|---|
| D010510 | Periodontal Diseases |
| D009059 | Mouth Diseases |
| D009057 | Stomatognathic Diseases |
| D014076 | Tooth Diseases |
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| Regular implants Treatment | Other | 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. |
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