Table 4.
Relationship between mouthguard type and fit characteristics
| Variable | Mouthguard type | |||||
|---|---|---|---|---|---|---|
| Stock MG N (%) | Mouth-formed N (%) | Custom | Total N (%) | χ2 | p | |
| Retention | ||||||
| Inadequate | 27 (87.1) | 59 (83.1) | 0 (0.0) | 86 (81.1) | 18.100 | < .001* |
| Adequate | 4 (12.9) | 12 (16.9) | 4 (100.0) | 20 (18.9) | ||
| Labial extension | ||||||
| Inadequate | 28 (90.3) | 59 (55.7) | 2 (50.0) | 89 (84.0) | 4.397 | .111 |
| Adequate | 3 (9.7) | 12 (16.9) | 2 (50.0) | 17 (16.0) | ||
| Palatal extension | ||||||
| Inadequate | 15 (48.4) | 27 (38.0) | 0 (0.0) | 42 (39.6) | 3.696 | .158 |
| Adequate | 16 (51.6) | 44 (62.0) | 4 (100.0) | 64 (60.4) | ||
| Occlusal coverage | ||||||
| Inadequate | 14 (45.2) | 34 (47.9) | 1 (25.0) | 49 (46.2) | 0.818 | .664 |
| Adequate | 17 (54.8) | 37 (52.1) | 3 (75.0) | 57 (53.8) | ||
| Balanced occlusiona | ||||||
| Inadequate | 19 (63.3) | 37 (64.9) | 1 (25.0) | 57 (54.8) | 2.423 | .298 |
| Adequate | 11 (36.7) | 33 (47.1) | 3 (75.0) | 47 (45.2) | ||
| Border smoothnessb | ||||||
| Inadequate | 17 (58.6) | 34 (53.1) | 0 (0.0) | 51 (53.1) | 3.752 | .153 |
| Adequate | 12 (41.4) | 30 (46.9) | 3 (100) | 45 (46.9) | ||
Abbreviations: χ2 = chi-squared test, CI confidence interval
*p < 0.05, 95% CI
aBalanced occlusion: missing data for two subjects. Excluded from analysis
bBorders: missing data for ten subjects. Excluded from analysis