The efficacy of freehand, pilot drilled and fully guided implant surgery in partially edentulous patients: A randomized control trial

TL;DR

Fully guided implant surgery is more accurate, faster, and leads to better patient satisfaction compared to freehand or pilot-drilled methods in partially edentulous patients.

Contribution

This study provides empirical evidence that fully guided implant surgery is superior in accuracy, surgical time, and patient outcomes.

Findings

Fully guided surgery showed superior accuracy (p < 0.001) compared to other techniques.

Fully guided surgery had shorter surgical times (45 minutes) and fewer complications (5%) compared to freehand and pilot-drilled methods.

Early implant failure was lowest in the pilot-drilled group (0%) and higher in the freehand group (13.3%).

Abstract

Partial edentulism poses challenges to oral function, aesthetics, and quality of life. Implant placement techniques—freehand, pilot-drilled, and fully guided—differ in accuracy, surgical time, and outcomes. In this study, only one predefined index implant per patient was analyzed to avoid confounding from multi-implant cases, and template fabrication for the pilot-drilled group was performed using diagnostic wax-up and thermoplastic material. This study evaluated these techniques in partially edentulous patients.

Ninety patients were randomly assigned to three groups: freehand (n = 30), pilot- drilled (n = 30), and fully guided (n = 30). Surgery duration, implant placement accuracy, post- operative complications, early implant failure rates, and patient satisfaction were measured. Accuracy was assessed using standardized CBCT imaging at 12 months, and satisfaction was evaluated via a validated questionnaire six months after prosthetic loading.

The fully guided technique demonstrated superior accuracy (p < 0.001), shorter surgical times (45 minutes vs. 60 and 75 minutes, p < 0.01), fewer complications (5% vs. 15% and 20%, p < 0.05), and higher satisfaction (9.2/10, p < 0.01). Early implant failure, defined at the implant level, occurred in 4/30 implants (13.3%) in the freehand group, 0/30 in the pilot-drilled group, and 2/30 in the fully guided group (p < 0.05).

Fully guided implant surgery outperformed other techniques in accuracy, efficiency, and patient satisfaction. These findings support fully guided, prosthetically driven workflows as a preferred option for partially edentulous patients, particularly in cases requiring high precision.

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