Comparison of shear bond strength of orthodontic brackets bonded using two different hydrophilic primers: An in vitro study
Context: Salivary control and maintenance of a dry operating field is a prime requisite of orthodontic bonding. Moisture insensitive primer (MIP) with a clinical significant bond strength values have a better edge over the conventional hydrophobic bonding systems. Aim: The aim of this study is to i...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2014-01-01
|
| Series: | Indian Journal of Dental Research |
| Subjects: | |
| Online Access: | http://www.ijdr.in/article.asp?issn=0970-9290;year=2014;volume=25;issue=2;spage=191;epage=196;aulast=Anand |
| _version_ | 1828415915462492160 |
|---|---|
| author | M Kumaraswamy Anand Kaberi Majumder Sundaram Venkateswaran N Rengarajan Krishnaswamy |
| author_facet | M Kumaraswamy Anand Kaberi Majumder Sundaram Venkateswaran N Rengarajan Krishnaswamy |
| author_sort | M Kumaraswamy Anand |
| collection | DOAJ |
| description | Context: Salivary control and maintenance of a dry operating field is a prime requisite of orthodontic bonding. Moisture insensitive primer (MIP) with a clinical significant bond strength values have a better edge over the conventional hydrophobic bonding systems.
Aim: The aim of this study is to investigate the effectiveness of two hydrophilic primers with respect to conventional hydrophobic primer by comparing their shear bond strength (SBS) and adhesive-failure locations after contamination with saliva and saliva substitute.
Materials and Methods: A total of 150 extracted human premolars were randomly divided into five group s ; Group A (Transbond MIP/saliva substitute), Group B (Opal Primo/saliva substitute), Group C (Transbond MIP/natural saliva), Group D (Opal Primo/natural saliva), control group - Group E (Transbond XT/dry), adhesive-Transbond XT used for all five groups and bonded using stainless steel brackets. Shear forces were applied to the samples with a universal testing machine. SBSs was measured in megapascals. The mode of bond failure was determined using the adhesive remnant index (ARI).
Results: The mean SBS produced by Transbond MIP was higher than Opal Primo, which was statistically significant according to one-way analysis of variance. Both the tested groups showed lesser bond strength values than Transbond XT (the control). ARI scores revealed that there was no statistically significant difference in the site of bond failure between study groups. ARI scores were found to be lower for study groups suggesting adhesive failure, compared to higher ARI scores for the control group suggesting cohesive failure.
Conclusion: Transbond XT adhesive with Transbond MIP or Opal Primo have clinically acceptable bond strength in wet fields. Opal Primo is a viable option to use as a hydrophilic primer clinically. |
| first_indexed | 2024-12-10T13:54:49Z |
| format | Article |
| id | doaj.art-1cd59bbb34834160bd994f79b7800ab4 |
| institution | Directory Open Access Journal |
| issn | 0970-9290 1998-3603 |
| language | English |
| last_indexed | 2024-12-10T13:54:49Z |
| publishDate | 2014-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Dental Research |
| spelling | doaj.art-1cd59bbb34834160bd994f79b7800ab42022-12-22T01:46:01ZengWolters Kluwer Medknow PublicationsIndian Journal of Dental Research0970-92901998-36032014-01-0125219119610.4103/0970-9290.135919Comparison of shear bond strength of orthodontic brackets bonded using two different hydrophilic primers: An in vitro studyM Kumaraswamy AnandKaberi MajumderSundaram VenkateswaranN Rengarajan KrishnaswamyContext: Salivary control and maintenance of a dry operating field is a prime requisite of orthodontic bonding. Moisture insensitive primer (MIP) with a clinical significant bond strength values have a better edge over the conventional hydrophobic bonding systems. Aim: The aim of this study is to investigate the effectiveness of two hydrophilic primers with respect to conventional hydrophobic primer by comparing their shear bond strength (SBS) and adhesive-failure locations after contamination with saliva and saliva substitute. Materials and Methods: A total of 150 extracted human premolars were randomly divided into five group s ; Group A (Transbond MIP/saliva substitute), Group B (Opal Primo/saliva substitute), Group C (Transbond MIP/natural saliva), Group D (Opal Primo/natural saliva), control group - Group E (Transbond XT/dry), adhesive-Transbond XT used for all five groups and bonded using stainless steel brackets. Shear forces were applied to the samples with a universal testing machine. SBSs was measured in megapascals. The mode of bond failure was determined using the adhesive remnant index (ARI). Results: The mean SBS produced by Transbond MIP was higher than Opal Primo, which was statistically significant according to one-way analysis of variance. Both the tested groups showed lesser bond strength values than Transbond XT (the control). ARI scores revealed that there was no statistically significant difference in the site of bond failure between study groups. ARI scores were found to be lower for study groups suggesting adhesive failure, compared to higher ARI scores for the control group suggesting cohesive failure. Conclusion: Transbond XT adhesive with Transbond MIP or Opal Primo have clinically acceptable bond strength in wet fields. Opal Primo is a viable option to use as a hydrophilic primer clinically.http://www.ijdr.in/article.asp?issn=0970-9290;year=2014;volume=25;issue=2;spage=191;epage=196;aulast=AnandAdhesive remnant indexhydrophilic primersmoisture insensitive primersaliva contaminationorthodontic bonding |
| spellingShingle | M Kumaraswamy Anand Kaberi Majumder Sundaram Venkateswaran N Rengarajan Krishnaswamy Comparison of shear bond strength of orthodontic brackets bonded using two different hydrophilic primers: An in vitro study Indian Journal of Dental Research Adhesive remnant index hydrophilic primers moisture insensitive primer saliva contamination orthodontic bonding |
| title | Comparison of shear bond strength of orthodontic brackets bonded using two different hydrophilic primers: An in vitro study |
| title_full | Comparison of shear bond strength of orthodontic brackets bonded using two different hydrophilic primers: An in vitro study |
| title_fullStr | Comparison of shear bond strength of orthodontic brackets bonded using two different hydrophilic primers: An in vitro study |
| title_full_unstemmed | Comparison of shear bond strength of orthodontic brackets bonded using two different hydrophilic primers: An in vitro study |
| title_short | Comparison of shear bond strength of orthodontic brackets bonded using two different hydrophilic primers: An in vitro study |
| title_sort | comparison of shear bond strength of orthodontic brackets bonded using two different hydrophilic primers an in vitro study |
| topic | Adhesive remnant index hydrophilic primers moisture insensitive primer saliva contamination orthodontic bonding |
| url | http://www.ijdr.in/article.asp?issn=0970-9290;year=2014;volume=25;issue=2;spage=191;epage=196;aulast=Anand |
| work_keys_str_mv | AT mkumaraswamyanand comparisonofshearbondstrengthoforthodonticbracketsbondedusingtwodifferenthydrophilicprimersaninvitrostudy AT kaberimajumder comparisonofshearbondstrengthoforthodonticbracketsbondedusingtwodifferenthydrophilicprimersaninvitrostudy AT sundaramvenkateswaran comparisonofshearbondstrengthoforthodonticbracketsbondedusingtwodifferenthydrophilicprimersaninvitrostudy AT nrengarajankrishnaswamy comparisonofshearbondstrengthoforthodonticbracketsbondedusingtwodifferenthydrophilicprimersaninvitrostudy |