Implant-prosthetic rehabilitation after radiation treatment in head and neck cancer patients: a case-series report of outcome
, , , , , and | Feb 07, 2016
About this article
Article Category: Research Article
Published Online: Feb 07, 2016
Page range: 94 - 100
Received: Nov 27, 2015
Accepted: Jan 06, 2016
DOI: https://doi.org/10.1515/raon-2016-0005
Keywords
© 2017 Jasna Cotic, Jure Jamsek, Milan Kuhar, Natasa Ihan Hren, Andrej Kansky, Mutlu Özcan, Peter Jevnikar
This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Predictors of the loaded implants’ success.
| Parameter | Odds ratio for the loaded implants’ success (95% confidence interval) | |
|---|---|---|
| Patient's age at prosthetic rehabilitation | 0.66 (0.49–0.80) | |
| Healing time after the implant insertion | 1.09 (0.53–2.73) | 1.0000 |
| Male gender | 8.64 (1.99–60.09) | 0.1456 |
| Smoker | 2.44 (0.57–16.95) | 1.0000 |
| Number of the implants supporting the denture | 0.78 (0.24–1.94) | 1.0000 |
| Denture attachment system | ||
| Locator | 12.33 (1.98–104.98) | 0.1456 |
| SynCone | 6.00 (1.15–32.68) | 0.4416 |
| SynCone | 0.48 (0.06–2.65) | 1.0000 |
| Upper jaw | 0.54 (0.14–2.30) | 1.0000 |
Predictors of the implant failure.
| Parameter | Hazard ratio (95% confidence interval) | |
|---|---|---|
| Patient's age at implant insertion in years | 1.05 (0.99–1.12) | 1.0000 |
| Time interval between the radiation therapy and the implant insertion in years | 0.99 (0.92–1.07) | 1.0000 |
| Female gender | 2.74 (0.82–9.10) | 1.0000 |
| Smoker | 0.72 (0.19–2.66) | 1.0000 |
| Lower jaw | 0.84 (0.23–3.09) | 1.0000 |
| Transplanted bone | 12.37 (3.87–39.56) | |
| HBO administered | 0.31 (0.10–0.98) | 0.4753 |
Summary of the loaded implants’ success according to the factors of interest.
| Parameter | All loaded implants (n = 89) | Successful loaded implants (n = 79) | Unsuccessful loaded implants (n = 10) |
|---|---|---|---|
| Median patient's age at prosthetic rehabilitation in years (range) | 59.1 (49.3–79.2) | 58.9 (49.3–67.9) | 71.7 (59.1–79.2) |
| Median healing time after the implant insertion in months (range) | 15.1 (4.3–54.4) | 15.2 (4.3–54.4) | 13.0 (4.3–24.6) |
| Patient's gender | |||
| Female, n (%) | 33 (37%) | 25 (32%) | 8 (80%) |
| Male, n (%) | 56 (63%) | 54 (68%) | 2 (20%) |
| Smoking | |||
| No, n (%) | 57 (64%) | 49 (62%) | 8 (80%) |
| Yes, n (%) | 32 (36%) | 30 (38%) | 2 (20%) |
| Median number of the implants supporting the denture (range) | 4 (2–5) | 4 (2–5) | 4 |
| Implant denture system | |||
| Bar, n (%) | 10 (11%) | 6 (8%) | 4 (40%) |
| Locator, n (%) | 39 (44%) | 37 (47%) | 2 (20%) |
| SynCone, n (%) | 40 (45%) | 36 (45%) | 4 (40%) |
| Jaw | |||
| Upper, n (%) | 25 (28%) | 21 (27%) | 4 (40%) |
| Lower, n (%) | 64 (72%) | 58 (73%) | 6 (60%) |
| Bone | |||
| Native, n (%) | 86 (97%) | 76 (96%) | 10 (100%) |
| Transplanted, n (%) | 3 (3%) | 3 (4%) | 0 (0%) |
| HBO administered | |||
| Yes | 75 (84%) | 65 (82%) | 10 (100%) |
| No | 14 (16%) | 14 (18%) | 0 (0%) |
Summary of the implant survival according to the factors of interest.
| Parameter | All implants (n = 100) | Survived implants (n = 88) | Failed implants (n = 12) |
|---|---|---|---|
| Patient's median age at implant insertion in years (range) | 58.3 (46.7–77.2) | 61.5 (46.7–77.2) | 57.9 (46.7–77.2) |
| Median time interval between radiation therapy and implant insertion in years (range) | 3.8 (1.1–38.1) | 3.2 (1.1–38.1) | 5.2 (2.4–12.8) |
| Patient's gender | |||
| Female, n (%) | 40 (40%) | 32 (36%) | 8 (67%) |
| Male, n (%) | 60 (60%) | 56 (64%) | 4 (33%) |
| Smoking | |||
| No, n (%) | 66 (66%) | 57 (65%) | 9 (75%) |
| Yes, n (%) | 34 (34%) | 31 (35%) | 3 (25%) |
| Implant system | |||
| Astra, n (%) | 18 (18%) | 18 (20%) | 0 (0%) |
| Straumann, n (%) | 22 (22%) | 17 (20%) | 5 (42%) |
| Ankylos, n (%) | 60 (60%) | 53 (60%) | 7 (58%) |
| Jaw | |||
| Lower, n (%) | 72 (72%) | 63 (72%) | 9 (75%) |
| Upper, n (%) | 28 (28%) | 25 (28%) | 3 (25%) |
| Bone | |||
| Native, n (%) | 92 (92%) | 85 (97%) | 7 (58%) |
| Transplanted, n (%) | 8 (8%) | 3 (3%) | 5 (42%) |
| HBO administered | |||
| No, n (%) | 19 (19%) | 14 (16%) | 5 (42%) |
| Yes, n (%) | 81 (81%) | 74 (84%) | 7 (58%) |