Comparison Between Computer-Assisted and Freehand Dental Implant Placement: A Systematic Review and Meta-analysis
Clinical Snapshot
PICO Framework
| P — Population | Adult patients requiring dental implant placement |
| I — Intervention | Computer-assisted implant surgery (CAIS) |
| C — Comparator | Freehand implant placement (FHIP) |
| O — Outcomes | Marginal bone loss, implant survival rate, patient satisfaction, pink esthetic scores, probing depth, and complications |
Bottom Line
This systematic review of 9 RCTs comparing computer-assisted versus freehand dental implant placement found no overall significant differences in survival rates or marginal bone loss, with both techniques achieving excellent survival rates above 98%. However, subgroup analyses revealed important clinical distinctions: computer-assisted surgery showed advantages in fresh socket placements, patient satisfaction, and esthetic outcomes, while freehand placement was associated with fewer biological complications. The evidence quality was limited by high risk of bias in most studies and ranged from very low to moderate certainty. For Australian practitioners, these findings suggest that while both techniques are clinically viable, computer-assisted surgery may be particularly beneficial in esthetic zones and immediate placement scenarios, though the additional cost and complexity should be weighed against potential benefits. The choice between techniques should be individualised based on case complexity, practitioner experience, and patient factors.
Key Findings
P Value: P = 0.04 for fresh socket MBL, P = 0.03 for patient satisfaction, P = 0.009 for pink esthetic scores
Effect Size: Subgroup-specific effects: CAIS superior in fresh socket placements and esthetic outcomes
Primary Outcome: No statistically significant overall differences in marginal bone loss or implant survival between CAIS and FHIP
Nnt Or Sensitivity: Both techniques achieved >98% survival rates; sensitivity analyses confirmed robustness for most outcomes
Confidence Interval: Not explicitly reported in abstract
Clinical Application
CAIS requires additional technology and training but may be justified in complex cases; FHIP remains standard approach for routine cases Relevant to Australian dental practice; CAIS technology increasingly available through specialist practices; cost considerations important given private dental system Adult patients requiring single or multiple dental implants, particularly relevant for immediate placement and esthetic zone cases
Abstract
PURPOSE: To compare computer-assisted implant surgery (CAIS) and freehand implant placement (FHIP) in terms of clinical and radiographic outcomes. MATERIALS AND METHODS: This systematic review and meta-analysis included a comprehensive search of five databases (PubMed, Embase, CINAHL, Scopus, and Web of Science), along with handsearching and cross-referencing, which identified randomized controlled trials (RCTs) comparing CAIS and FHIP literature published up to November 2024. Outcomes included marginal bone loss (MBL), implant survival rate, patient satisfaction, pink esthetic scores, probing depth, and complications. The Cochrane risk of bias (RoB) tool and the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) approach were used to assess study quality and evidence certainty. Meta-analysis and sensitivity/subgroup analyses were also conducted. RESULTS: A total of 12 publications from 9 RCTs (395 participants, 1,242 implants) were included. Although overall differences in MBL and implant survival were not statistically significant, subgroup analyses revealed several significant findings. CAIS demonstrated significantly reduced MBL in fresh socket placements (P = .04), higher patient satisfaction (P = .03), and improved pink esthetic scores (P = .009). FHIP was associated with fewer biologic complications (P = .04) and lower MBL values when compared to tissuesupported CAIS (P = .03). Sensitivity analyses confirmed robustness for most outcomes; however, evidence quality ranged from very low to moderate, and six studies showed a high RoB. CONCLUSIONS: Considering the limitations related to the quality of the included studies, both CAIS and FHIP achieved high survival rates (> 98%). CAIS showed advantages in fresh socket cases and esthetic/patient-reported outcomes, while FHIP had fewer biologic complications and better outcomes when using an open-flap approach.
References
- 1.Shirani, M., & Emami, M. (2026). Comparison between computer-assisted and freehand dental implant placement: A systematic review and meta-analysis. The International Journal of Oral & Maxillofacial Implants. https://doi.org/10.11607/jomi.11349
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