Journal List > J Korean Acad Prosthodont > v.48(2) > 1034648

Yoon, Choi, and Lee: The effect of denture adhesives on the retention of complete denture

Abstract

Purpose

The purpose of this study was to compare the retention of the two denture adhesives with a silicone edentulous model and a resin denture base in vitro study.

Material and methods

The experimental groups were used two denture adhesives and classified into 5 subgroups each. Subgroups were divided by the number of times the saliva sprayed. The control group was used synthetic saliva only. Dislodging tensile strengths were applied to the resin denture base using Instron in 3 directions : vertical, lateral, and anterior-posterior.

Results

The retention of two denture adhesives was increased significantly than saliva alone (P < .05). In each denture adhesives, the retention of saliva sprayed first was decreased than denture adhesive alone, but it didn't have significant differences. Whenever saliva sprayed repeated, the retention was decreased significantly than saliva sprayed first (P < .05). In each denture adhesives, vertical retentive force was highest than lateral and anterior-posterior retentive forces, and anterior-posterior retentive force was higher than lateral retentive force. This results were significantly different (P < .05). Significant differences of the retentive ability among two denture adhesives were not observed.

Conclusion

From the results, use of the denture adhesives resulted in improved retentive ability of denture. Especially retentive force was highest in vertical direction. (J Korean Acad Prosthodont 2010;48:87-93)

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Fig. 1.
The silicone model.
jkap-48-87f1.tif
Fig. 2.
The resin base.
jkap-48-87f2.tif
Fig. 3.
The vertically directed dislodging force applied to the resin base sample.
jkap-48-87f3.tif
Table I.
Denture adhesives used in this study
Name Company Composition
POLIDENT® Stafford Miller Wexford, Ireland Poly (Methylvinylether/Maleic acid) Sodium-Calcium Mixed Partial Salt Carboxymethylcellulose, Petrolatum, Mineral oil, Spray Dried Spearmint, Propyl Hydroxybenzoate, Erythrosine
COREGA® Stafford Miller Wexford, Ireland Poly (Methylvinylether/Maleic acid) Sodium-/Magnesium-/Zinc-Mixed Salt, Carboxymethylcellulose Sodium-salt, White Petrolatum,Paraffin, Silicondioxide Poly (Methylvinylether/Maleic acid
Table II.
Classification of the tested group
Abbr. Interface medium Dislodging force
Control Saliva  
Px POLIDENT®  
P1 POLIDENT®+ Saliva 1st sprayed  
P2 POLIDENT®+ Saliva 2nd sprayed  
P3 POLIDENT®+ Saliva 3rd sprayed Vertical/
P4 POLIDENT®+ Saliva 4th sprayed Lateral/
Cx COREGA® Anterior-posterior
C1 COREGA®+ Saliva 1st sprayed  
C2 COREGA®+ Saliva 2nd sprayed  
C3 COREGA®+ Saliva 3rd sprayed  
C4 COREGA®+ Saliva 4th sprayed  
Table III.
Mean values of retentive forces on vertical direction (Unit: N/cm2)
Abbr. Mean SD Scheffe Grouping
Control 0.30 0.02 C
Px 0.87 0.11 A
P1 0.71 0.16 B, A
P2 0.45 0.12 B, C
P3 0.33 0.10 C
P4 0.27 0.06 C
Cx 0.93 0.14 A
C1 0.55 0.10 B, C
C2 0.45 0.09 B, C
C3 0.40 0.05 C
C4 0.42 0.05 C

Different alphabet denotes significant difference between groups (P < .05).

Table IV.
Mean values of retentive forces on lateral direction (Unit: N/cm2)
Abbr. Mean SD Scheffe Grouping
Control 0.15 0.02 D
Px 0.35 0.05 A
P1 0.28 0.03 B, A, C
P2 0.20 0.04 B, D, C
P3 0.18 0.04 B, D, C
P4 0.18 0.04 D, C
Cx 0.28 0.02 B, A
C1 0.27 0.05 B, A, C
C2 0.23 0.01 B, D, C
C3 0.23 0.03 B, D, C
C4 0.20 0.05 B, D, C

Different alphabet denotes significant difference between groups (P < .05).

Table V.
Mean values of retentive forces on anterior-posterior direction (Unit: N/cm2)
Abbr. Mean SD Scheffe Grouping
Control 0.19 0.05 A
Px 0.35 0.06 A
P1 0.30 0.08 A
P2 0.22 0.10 A
P3 0.21 0.08 A
P4 0.20 0.09 A
Cx 0.33 0.07 A
C1 0.37 0.06 A
C2 0.38 0.11 A
C3 0.32 0.10 A
C4 0.30 0.07 A

Different alphabet denotes significant difference between groups (P < .05).

Table VI.
Results of Scheffe's test on adhesives
Adhesive Significant at the 0.05 level
  Cx C1 C2 C3 C4 Px P1 P2 P3 P4
Cx      
C1              
C2              
C3                
C4                
Px      
P1              
P2              
P3            
P4          

Represents significant difference according to Scheffe's test (P < .05).

Table VII.
Results of Scheffe's test on directions
Direction Significant at the 0.05 level
Vertical Lateral Anterior-Posterior
Vertical  
Lateral  
Anterior-Posterior  

Represents significant difference according to Scheffe's test (P < .05).

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