11 February 2023 : Clinical Research
A Study of 42 Partially Edentulous Patients with Single-Crown Restorations and Implants to Compare Bone Loss Between Crestal and Subcrestal Endosseous Implant Placement
Shailesh Jain
1ABCDEF*, Khurshid Mattoo2ACDEG, Imran Khalid3CDEFG, Fawaz A.H. Baig3ADEFG, Mohammad Zahir Kota3CDEFG, Muhammad Ishfaq3ADEFG, Mohammed Ibrahim3ACEFG, Sahba Hassan1BCDEF
DOI: 10.12659/MSM.939225
Med Sci Monit 2023; 29:e939225
Table 2 Comparative means scores of clinical parameters among patients in various groups and the respective level of significance between various groups at different intervals of time.
| Clinical parameters | Mesial crestal bone loss | Distal crestal bone loss | |||
|---|---|---|---|---|---|
| GP E | GP S | GP E | GP S | ||
| Mean±SD | Mean±SD | Mean±SD | Mean±SD | ||
| Bone loss around implant | After placement | 0.00±0.00 | −2.00±−0.00 | 0.00±0.00 | −2.00±0.00 |
| 3 month | 0.28±0.04 | −1.52±0.17 | 0.34±0.15 | −1.52±0.15 | |
| 6 month | 0.40±0.12 | −1.07±0.36 | 0.70±0.82 | −1.08±0.36 | |
| 9 month | 0.79±0.0.72 | −0.62±0.0.75 | 0.81±0.12 | −0.64±0.19 | |
| 12 month | 1.02±0.0.47 | −0.04±0.39 | 1.10±0.29 | −0.04±0.17 | |
| Mean differences between various time intervals# | 0–3 M | 0.28 | 0.48 | 0.34 | 0.48 |
| 3–6 M | 0.12 | 0.45 | 0.36 | 0.44 | |
| 6–9 M | 0.39 | 0.45 | 0.11 | 0.44 | |
| 9–12 M | 0.23 | 0.58 | 0.29 | 0.60 | |
| 0–12 M | 1.02 | 1.96 | 1.10 | 1.96 | |
| Repeated measures ANOVA | F | 183.54 | 179.37 | 12.250 | 185.399 |
| p-value | <0.001* | <0.001* | <0.001* | <0.001* | |
| GP – group; M – month; E –equicarestal; S – subcrestal. Level of significance: NS (not-significant) = P≥0.05; * Significant = P≤0.05. # Formula: Mean difference calculated by z = [(x1 − x2) − (μ1 − μ2)]/sqrt (σ12/n1 + σ22/n2). | |||||