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The Influence of Caries Infiltrant Combined with and without Conventional Adhesives on Sealing of Sound Enamel (In Vitro Study)

Authors: Marwa Balasim مروة بلاسم --- Dhiaa J. N. Al-Dabagh ضياء جعفر الدباغ
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2016 Volume: 28 Issue: 2 Pages: 119-125
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: The formation of white spot lesions around fixed orthodontic attachments is a common complicationduring and after fixed orthodontic treatment, which hinders the result of a successfully completed orthodontictreatment. The aim of the study was to assess the effectiveness of the Caries Infiltrant (ICON®) on prevention of carieson the smooth enamel surface when applied alone or combined with conventional adhesives.Materials and methods: Seventy eight human premolar enamel discs were randomly assigned to six groups (n=13).The discs were etched and treated with resins of different monomer content forming the following groups:(1)Untreated etched samples served as the negative control, (2) ICON® (DMG), (3) Adper™ SB 2 (3M ESPE), (4)Heliobond (IvoclarVivadent), (5) ICON®+ Adper™ SB 2 and (6) ICON®+ Heliobond. Specimens were subjected todemineralization by immersion in hydrochloric acid (pH 2.6) for 18 days. Calcium dissolution into the acid wasassessed by photometric test via spectrophotometer at 24 hour intervals.Results: The results revealed that, there was a highly significant difference between the sealed groups and theunsealed (untreated) one (p≤0.00) indicating that the unsealed specimens showed the highest amount of Ca ion lossamong all other groups. Additionally, there was no significant difference between untreated specimens and theICON® sealed ones. While, Heliobond decreased the Ca ion loss significantly compared to the untreated specimensand Adper™ SB 2 performed significantly better than both ICON® and Heliobond. Furthermore, the combination ofICON® with either Adper™ SB 2 or Heliobond served as the best protective measures and maintained the protectiveeffect during the whole experiment period. Therefore, within the limitations of this in vitro study, it could beconcluded that the use of Caries Infiltrant prior to the application of the tested conventional adhesives increasestheir protective effect against demineralization.


Article
White Spot Lesions Among Patients Treated With Fixed Orthodontic Appliance at Different Time Intervals

Authors: Elaf Abdul Kareem Alidan --- Nadia A. Alrawi
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2017 Volume: 29 Issue: 1 Pages: 177-182
Publisher: Baghdad University جامعة بغداد

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Abstract

Background:- White spot lesions are common esthetic problem that compromise the success of orthodontic treatment. This study aimed to assess white spot lesions in patients with fixed orthodontic appliance at different time intervals.Materials & Methods:- Thirty two patients (24 females and 8 males) were included in this study and they underwent clinical examination for white spot lesions using enamel decalcification index at four time intervals: (2-3 weeks after appliance insertion, 2, 4 and 6 months).Results:- The patients were free of white spot lesions at the appliance insertion visit. The mean of white spot lesions was 2.22 which were increased significantly during six months to reach 24.59 at the end of study. There was a significant difference between the maxillary and the mandibular arches, however, there was no significant difference found between the right and the left sides in both arches. The total numbers of teeth affected by white spot lesions were 74.61% after six months of treatment. Maxillary second premolar and mandibular canine were the most affected teeth; whereas the gingival area around the orthodontic brackets was the most affected area.Conclusion:-Orthodontic patients had a high risk for development of white spot lesions


Article
The Effect of Some Remineralization Materials and Resin Infiltration (ICON) on the Depth of White Spot Lesions

Authors: Israa J. Attar اسراء جعفر العطار --- Nidhal H. Ghaib نضال حسين غايب
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2018 Volume: 30 Issue: 2 Pages: 71-75
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: White spot lesions (WSLs) are subsurface enamel demineralization manifested as white opacities which had an esthetic problem. The purpose of this in-vitro study was to evaluate the lesion depth improvement of WSLs following application of fluoride varnish, tooth mousse and resin infiltration (ICON).Materials and methods: Artificial WSLs were created on 120 premolar teeth using demineralization solution with pH (4-4.5). Samples randomly allocated into four groups; fluoride varnish, tooth mousse, ICON and untreated group. Groups were discolored in Cola and orange juice for 24 hours. Teeth were ground sectioned by longitudinal cutting then these sections examined and photographed under stereomicroscope at 12X magnification then analyzed for lesion depth measurements using Image Pro Plus computer software to record the average lesion depth (μm).Results: The mean values of lesion depth for WSLs groups in DDW, Cola and orange juice increased after formation of WSLs then decreased with the fluoride varnish, tooth mousse and ICON. There was a statistically significant difference between the WSLs, fluoride and Mousse group in DDW and Cola, while there was no statistically significant effect of ICON on WSL in DDW (p=0.341)and Cola (p=0.210).Conclusions: Formation of WSLs is associated with significant lesion depth changes and the use of fluoride varnish, tooth mousse and ICON could return minerals or resin to subsurface enamel of WSLs and improve lesion depth in different soft drinks

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