Complete root coverage
77.9%
The percentage of studied Miller Class I–II sites reported with complete root coverage at long-term follow-up.
Published long-term evidence
PST® outcomes at a mean follow-up of 14.5 years.
This retrospective case series followed 28 patients and 68 Miller Class I–II recession sites for an average of 173.8 months.
28 patients68 recession sites173.8-month mean follow-upPeer-reviewed publication
Study summary
What the authors reported.
The figures below describe outcomes observed in this study population; they do not predict an individual patient’s result.
Mean root-defect coverage
86.6%
The average percentage of the original recession defect covered at the mean 14.5-year follow-up.
Patient esthetic satisfaction
95.1%
Patient-reported esthetic satisfaction across the recalled patients at long-term follow-up.
Evidence context: This was a retrospective case series, not a randomized trial. Results apply to the selected patients and sites studied and should be interpreted with the full paper, clinical examination, and professional judgment. Citation: Chao J, et al. Long-Term Retrospective Case Series of the Pinhole Surgical Technique. Int J Periodontics Restorative Dent 2026;46:299–305.
Clinical photographs
A documented case from the study.
Clinical photographs reproduced from the published case series—the same patient at baseline, 33 months, and the 18-year recall.
IJPRD series · 33 months and 18 years post-opView source ↗
Baseline
33 months
18 years
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Review the complete publication.
Use the PubMed record to confirm the study design, inclusion criteria, methods, outcomes, and limitations before citing the findings.
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