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Comparative analysis of the retention of maxillary denture base with and without border molding using zinc oxide eugenol impression paste.

Kaur S, Datta K, Gupta SK, Suman N - Indian J Dent (2016 Jan-Mar)

Bottom Line: On both trays, the final impression was made with zinc oxide eugenol impression paste.Mean force with border molding (2765.0 g) was larger than mean force without border molding (1805.0 g) at P < 0.01 level.In terms of percentage, too, the mean improvement (59.4%) in force of dislodgement was statistically highly significant (i.e. P < 0.01).

View Article: PubMed Central - PubMed

Affiliation: Department of Prosthodontics, Sri Guru Ram Das Institute of Dental Sciences and Research, Amritsar, Punjab, India.

ABSTRACT

Aims and objectives: The purpose of the study was to determine the effect of border molding on the retention of the maxillary denture base.

Materials and methods: Two special trays, one with full extensions to the periphery and one 2 mm short from the borders were made on the cast obtained from the preliminary impression. Border molding was done on the tray which was short from borders. On both trays, the final impression was made with zinc oxide eugenol impression paste. Heat cure denture bases were fabricated on the prepared casts and retention was measured using specially designed instrument.

Observations and results: Mean force with border molding (2765.0 g) was larger than mean force without border molding (1805.0 g) at P < 0.01 level. In terms of percentage, too, the mean improvement (59.4%) in force of dislodgement was statistically highly significant (i.e. P < 0.01).

Clinical significance: The results of the present study suggest that the dentures made with border molding will provide better retentive force than the dentures made without border molding.

No MeSH data available.


Related in: MedlinePlus

Patient with maxillary denture base in mouth for attachment to the retention testing device
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Figure 6: Patient with maxillary denture base in mouth for attachment to the retention testing device

Mentions: For measuring the retention, a specially designed testing device was used. The device assembly had an adjustable forehead support and chin rest to obtain the stable patient position. It had a horizontal rod with a metal rod on one end and a wire tied on the other end which passed over the pulley and attached to a plate for carrying the weights. The metal rod had a notch which fitted on the wire of the denture base. The retention of both the sets of denture bases was tested after they had been left in the mouth for 20 min. Patient was seated in front of the testing device in a comfortable position. The chin was placed quite firmly in the chin rest with forehead leaning solidly against the forehead support. The notch on the steel rod was fitted on the wire of the denture base [Figure 6]. Patient was instructed to relax and not to exert any pressure on the denture base with the tongue. Weights were placed on the plate till the denture base dislodged.


Comparative analysis of the retention of maxillary denture base with and without border molding using zinc oxide eugenol impression paste.

Kaur S, Datta K, Gupta SK, Suman N - Indian J Dent (2016 Jan-Mar)

Patient with maxillary denture base in mouth for attachment to the retention testing device
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4836091&req=5

Figure 6: Patient with maxillary denture base in mouth for attachment to the retention testing device
Mentions: For measuring the retention, a specially designed testing device was used. The device assembly had an adjustable forehead support and chin rest to obtain the stable patient position. It had a horizontal rod with a metal rod on one end and a wire tied on the other end which passed over the pulley and attached to a plate for carrying the weights. The metal rod had a notch which fitted on the wire of the denture base. The retention of both the sets of denture bases was tested after they had been left in the mouth for 20 min. Patient was seated in front of the testing device in a comfortable position. The chin was placed quite firmly in the chin rest with forehead leaning solidly against the forehead support. The notch on the steel rod was fitted on the wire of the denture base [Figure 6]. Patient was instructed to relax and not to exert any pressure on the denture base with the tongue. Weights were placed on the plate till the denture base dislodged.

Bottom Line: On both trays, the final impression was made with zinc oxide eugenol impression paste.Mean force with border molding (2765.0 g) was larger than mean force without border molding (1805.0 g) at P < 0.01 level.In terms of percentage, too, the mean improvement (59.4%) in force of dislodgement was statistically highly significant (i.e. P < 0.01).

View Article: PubMed Central - PubMed

Affiliation: Department of Prosthodontics, Sri Guru Ram Das Institute of Dental Sciences and Research, Amritsar, Punjab, India.

ABSTRACT

Aims and objectives: The purpose of the study was to determine the effect of border molding on the retention of the maxillary denture base.

Materials and methods: Two special trays, one with full extensions to the periphery and one 2 mm short from the borders were made on the cast obtained from the preliminary impression. Border molding was done on the tray which was short from borders. On both trays, the final impression was made with zinc oxide eugenol impression paste. Heat cure denture bases were fabricated on the prepared casts and retention was measured using specially designed instrument.

Observations and results: Mean force with border molding (2765.0 g) was larger than mean force without border molding (1805.0 g) at P < 0.01 level. In terms of percentage, too, the mean improvement (59.4%) in force of dislodgement was statistically highly significant (i.e. P < 0.01).

Clinical significance: The results of the present study suggest that the dentures made with border molding will provide better retentive force than the dentures made without border molding.

No MeSH data available.


Related in: MedlinePlus