Introducción:

Of the different elements that intervene in the stability of an implant, we can focus on the platform and type of mucosal portion. Thus, we can establish two large groups: one-piece implants, which we call "tissue-level" or two-piece implants, also called "bone-level".

Objective:

The objectives of this study were to evaluate and compare the biomechanical behavior of dental implants at bone level or "bone level" (BL) and at tissue level or "tissue level" (TL). Specifically, the insertion feel (ITV), the coeficient implant stability (ISQ) and the relationship between these two parameters were analyzed.

Material and methods:

A randomized clinical study is proposed. Patients are randomized, if they meet criteria, to receive a significant bone level (BL), or a tissue level (TL), Biohorizons (Madrid, Spain). Data such as patient age, sex, implant location, implant microgeometry, implant length, implant diameter, implant torque, and ISQ were also recorded. Three months after implant placement, a second surgery was performed and ISQ measurements were taken again.

Results:

75 implants were placed in 16 patients. No significant differences were observed in the ISQ value of the BL and TS implants on the day of surgery (p=0.865) or at three months (p=0.461). Significant differences were observed on the day of surgery between the ISQ values of the mandible and maxilla, but these were not maintained at three months.

Conclusion:

When comparing the stability of implants placed at bone level and at soft tissue level over a 3-month period, we found that while both gained stability, implants placed at bone level showed a greater mean increase in ISQ assessments. However, additional studies with a larger number of patients will be necessary to validate these results.

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