Background
Methods
Participants
Variable | Upper denture | Lower denture |
---|---|---|
Period of edentulousness | ||
<1 year | 11 | 21 |
1 year ≤ 3 years | 2 | 4 |
3 years ≤ 5 years | 12 | 6 |
5 years ≤ 10 years | 13 | 12 |
≥10 years | 55 | 50 |
Number of previous complete dentures | ||
0 | 3 | 11 |
1 – 3 | 74 | 65 |
4 – 6 | 12 | 13 |
≥7 | 4 | 4 |
Time since current complete dentures | ||
<0.5 years | 28 | 27 |
0.5 years ≤ 10 years | 33 | 35 |
≥10 years | 32 | 31 |
Type of investigation | N (male/female) | Mean age (years) | Year of enrolment |
---|---|---|---|
Internal consistency
| 93 (44/49) | 75.0 | 2009 & 2010 |
Test-retest reliability
| 33 (15/18) | 74.5 | 2009 |
Discriminant validity
| 93 (44/49) | 75.0 | 2009 & 2010 |
Ability to detect change
| 93 (44/49) | 75.0 | 2009 & 2010 |
Development of the patient denture assessment (PDA)
Subscale | Questionnaire items |
---|---|
Function
| Q1. How much pain do you feel? |
Q2. How easy is it for you to swallow food boluses and water? | |
Q3. How well do you enjoy your meals? | |
Q4. How worn out does your jaw feel? | |
Aesthetics & speech
| Q5. How worried are you about other people watching? |
Q6. How easy is it for you to speak? | |
Q7. How worried are you about your mouth? | |
Q8. How often do your dentures click when chewing? | |
Lower denture
| Q9. How often does food debris get stuck under your lower denture? |
Q10. How is your lower denture retained on the ridge? | |
Q11. How does your lower denture fit? | |
Q12. How uncomfortable is your lower denture? | |
Expectation
| Q13. How satisfactory will the new dentures be? |
Q14. How problematic will the new dentures be? | |
Q15. How well will the new dentures fit? | |
Upper denture
| Q16. How often does food debris get stuck under your upper denture? |
Q17. How does your upper denture fit | |
Q18. How often does your upper denture fall down? | |
Importance
| Q19. How much do you consider your dentures as part of your body? |
Q20. How important are your dentures to you? | |
Q21. How much can you care for your dentures without any difficulty? | |
Q22. How at ease do you feel when wearing your dentures? |
Clinical measurements
Reliability and validity
Ability to detect change
Statistical analysis
Results
Subscale | Items | Mean ± SD | |
---|---|---|---|
Before-1 | After | ||
Function
| Q1 | 74 ± 30 | 83 ± 24 |
Q2 | 78 ± 24 | 87 ± 18 | |
Q3 | 72 ± 28 | 83 ± 23 | |
Q4 | 74 ± 29 | 87 ± 21 | |
Aesthetics & speech
| Q5 | 67 ± 34 | 88 ± 20 |
Q6 | 66 ± 33 | 85 ± 22 | |
Q7 | 58 ± 37 | 86 ± 21 | |
Q8 | 60 ± 37 | 72 ± 31 | |
Lower denture
| Q9 | 41 ± 35 | 70 ± 30 |
Q10 | 45 ± 34 | 77 ± 28 | |
Q11 | 43 ± 35 | 82 ± 23 | |
Q12 | 47 ± 36 | 79 ± 26 | |
Expectation
| Q13 | 64 ± 38 | 87 ± 20 |
Q14 | 51 ± 40 | 80 ± 28 | |
Q15 | 54 ± 42 | 82 ± 27 | |
Upper denture
| Q16 | 60 ± 36 | 83 ± 24 |
Q17 | 71 ± 33 | 89 ± 18 | |
Q18 | 72 ± 33 | 91 ± 17 | |
Importance
| Q19 | 88 ± 23 | 90 ± 20 |
Q20 | 95 ± 11 | 97 ± 6 | |
Q21 | 75 ± 26 | 84 ± 21 | |
Q22 | 79 ± 27 | 88 ± 18 |
Reliability and validity
Scales | Cronbach’s α | Average inter-item correlation coefficient |
---|---|---|
Summary score
| 0.91 | 0.59 |
Function
| 0.85 | 0.59 |
Aesthetics & speech
| 0.83 | 0.54 |
Lower denture
| 0.89 | 0.67 |
Expectation
| 0.93 | 0.83 |
Upper denture
| 0.86 | 0.67 |
Importance
| 0.56 | 0.28 |
Scales | ICC | 95% CI |
---|---|---|
Summary score
| 0.78 | [0.61, 0.89] |
Function
| 0.74 | [0.54, 0.86] |
Aesthetics & speech
| 0.77 | [0.69, 0.91] |
Lower denture
| 0.83 | [0.46, 0.83] |
Expectation
| 0.37 | [0.03, 0.63] |
Upper denture
| 0.69 | [0.59, 0.88] |
Importance
| 0.59 | [0.32, 0.77] |
Scales | Mean ± SD |
P
| |
---|---|---|---|
Summary score
|
Before-1
| 1433 ± 430 | < 0.00 |
After
| 1850 ± 340 | ||
Function
|
Before-1
| 298 ± 93 | < 0.00 |
After
| 340 ± 74 | ||
Aesthetics & speech
|
Before-1
| 251 ± 116 | < 0.00 |
After
| 331 ± 73 | ||
Lower denture
|
Before-1
| 176 ± 122 | < 0.00 |
After
| 307 ± 93 | ||
Expectation
|
Before-1
| 169 ± 113 | < 0.00 |
After
| 249 ± 69 | ||
Upper denture
|
Before-1
| 202 ± 90 | < 0.00 |
After
| 263 ± 43 | ||
Importance
|
Before-1
| 336 ± 59 | < 0.00 |
After
| 360 ± 48 |