Evaluation of periimplant bone neoformation using different scanning electron microscope methods for measuring BIC. A...

Area of Science:

• Dental Implantology
• Biomaterials Science
• Histology

Background:

• Accurate assessment of bone-to-implant contact (BIC) is crucial for evaluating dental implant success.
• Different methods exist for quantifying BIC, but their precision varies.
• Understanding bone apposition and composition around implants informs material selection and surgical protocols.

Purpose of the Study:

• To compare the precision of three distinct methods for measuring BIC using scanning electron microscopy (SEM).
• To evaluate the composition of newly formed bone around different implant systems at various time points.
• To determine the optimal method for assessing bone integration in a canine model.

Main Methods:

• 36 implants were placed in the mandibles of 18 Beagle dogs.
• BIC was measured using three methods (BIC I, BIC II, BIC III) at 15, 30, and 90 days post-surgery.
• Elemental analysis (Ca, P, O, C) using SEM assessed neoformed bone composition.

Main Results:

• BIC III evaluation demonstrated higher certainty in quantifying bone-to-implant contact area.
• Elemental analysis revealed high percentages of calcium present only at the 90-day mark.
• Vestibular and lingual SEM provided detailed analysis of bone apposition.

Conclusions:

• The BIC III method is recommended as the most reliable for quantifying bone-to-implant contact.
• Significant bone formation and mineralization occur by 90 days post-surgery.
• SEM and elemental analysis are valuable tools for assessing bone integration and composition.