Shear bond strength of orthodontic bracket bonded to buccal versus lingual surfaces
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 1
Abstract
Objectives: The objective of this investigation was to assess shear bond strength (SBS) of orthodontic brackets bonded to the buccal and lingual enamel using two orthodontic adhesives: resin-modified glass-ionomer and resin composite. Methods: Twenty buccal and twenty lingual human premolar enamel surfaces, allocated into four groups 10/each were used in this study. Metal brackets were bonded to each surface using resin-modified glass-ionomer or resin composite orthodontic adhesive, and excess was removed with a brush. Specimens were stored for 24 hours, subjected to thermocycling and shear bond strength was measured using a universal testing machine at a crosshead speed of 1 mm/min. Remaining adhesives on enamel after bracket debonding was scored independently by two investigators who were not aware of the groups using modified adhesive remnant index (ARI). Results: Kruskal Wallis test indicated significant difference of shear bond strength between the four groups (P=0.007). Pair-wise comparisons using Mann-Whitney test showed that the only significant difference was between resin composite of buccal and resin-modified glass-ionomer of lingual surfaces (P=0.003) as well as between resin composite of lingual and resin-modified glass-ionomer of lingual surfaces (P=0.001). Most of the specimens of all groups, achieved ARI scores 4 and 5 with a very low frequency of ARI scores 2 and 3. Conclusions: This research shows that no significant differences in shear bond strength between buccal and lingual surfaces. Resin-modified glass-ionomer and resin composite adhesives exhibited sufficient shear bond strength for orthodontic use and no significant difference was found between the two adhesives.
Authors and Affiliations
Fouad Salama, Malak Aldosari, Hessa Alrejae, Naif Almosa
Keywords
Related Articles
- EP ID EP263811
- DOI 10.9790/0853-1701062429
- Views 97
- Downloads 0
A Study to Correlate Elevated Creatinine Phosphokinase with Snake Bite and Acute Kidney Injury
CONTEXT Hemotoxic snake bite is associated with acute kidney injury in around two thirds of cases. Thisstudy is toestablish therelation betweenelevated CPK values with acute kidney injuryand reversibility with alkaline d...
A Five-Year Retrospective Study of Deaths Due To Constriction of Neck
Introduction: Hanging and strangulation are amongst the commonest modes of violent asphyxial deaths. Usuallydeaths from hanging are suicidal and those from strangulation are homicidal in nature.Methods: During thisretros...
The Correlation between Clinical Findings, MRI, andArthroscopic Findings in Anterior Cruciate Ligament and Meniscal Injuries ofthe Knee
Background: The knee joint is a common site of injury due to trauma, repetitive activities, and sports activities.Clinical diagnosis, encompassing an accurate history, thorough examination and interpretation of investiga...
Retrieval of Gallbladder through Subxiphoid V/S Supraumbilical Port in Laparoscopic Cholecystectomy.
BACKGROUND Aim- Diseases of gallbladder have presented for a long time. Before era of laparoscopic open cholecystectomy was the procedure of choice but invention of laparoscopy made it the procedure of choice for electiv...
Hyalinised Oncocytoma of Parotid Gland: A Case Report
Oncocytoma or oxyphilic adenoma is defined since the classic works of Hamperl as a benign tumor exclusively composed of oxyphilic cells ; the large eosinophilic cuboidal to columnar cells with more than 60% of their cyto...