An open randomized controlled clinical trial to evaluate ridge preservation and repair using SocketKAP™ and SocketKAGE™: part 2 – three-dimensional alveolar bone volumetric analysis of CBCT imaging

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Abstract

Objectives:

The aims of this study were (i) to evaluate the efficacy of ridge preservation and repair procedures involving the application of SocketKAP™ and SocketKAGE™ devices following tooth removal and (ii) to evaluate alveolar bone volumetric changes at 6 months post-extraction in intact sockets or those with facial wall dehiscence defects using 3-dimensional pre- and postoperative CBCT data.

Materials and Methods:

Thirty-six patients required 61 teeth extracted. Five cohorts were established: Group A: Intact Socket Negative Control Group B: Intact Socket + SocketKAP™ Group C: Intact Socket Filled with Anorganic Bovine Bone Mineral (ABBM) + SocketKAP™ Group D: Facial Dehiscence Socket Negative Control Group E: Facial Dehiscence Socket Filled with ABBM + SocketKAP™ + SocketKAGE™. Preoperative CBCT scans were obtained followed by digital subtraction of the test teeth. At 6 months post-extraction, another CBCT scan was obtained. The pre- and postoperative scans were then superimposed, allowing highly accurate quantitative determination of the 3D volumetric alveolar bone volume changes from baseline through 6 months.

Results:

Significant volumetric bone loss occurred in all sockets, localized mainly in the 0–3 mm zone apical to the ridge crest. For intact sockets, SocketKAP™ + ABBM treatment led to a statistically significant greater percentage of remaining mineralized tissue volume when compared to negative control group. A significant difference favoring SocketKAP™ + SocketKAGE™ + ABBM treatment was observed for sockets with facial dehiscence defects compared to the negative control group.

Conclusions:

SocketKAP™, with ABBM, appears effective in limiting post-extraction volumetric bone loss in intact sockets, while SocketKAP™ + SocketKAGE + ABBM appears effective in limiting post-extraction bone loss in sockets with dehiscence defects.

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