Randomized Clinical Trial of Fissure Sealants Comparing Universal Adhesive With Etch-And-Rinse Adhesive After 24 Month
Condition: Fissure, Dental; Adhesion
MeSH terms: Dental Fissures
Study type: Interventional

Summary: 
      Objective: This randomized, controlled clinical study aimed to evaluate the performance of
      one universal adhesive applied with etch-and-rinse or self-etch strategy and one
      etch-and-rinse adhesive on fissure sealant retention over 24 months. Methodology: 144
      sealants were placed on the permanent premolars and molars of 13 subjects. Teeth were divided
      into three groups SB2(control): Adper Single Bond 2, SBU-ER: Single Bond
      Universal/etch-and-rinse, SBU-SE: Single Bond Universal/self-etch. After the adhesive
      application, Fissurit FX was applied and light-cured. Clinical evaluations were done at
      baseline and at 1 week, 6-, 12-, 18- and 24-month recalls. Visual examination was performed
      on every visit for evaluation of the sealants. Evaluating criteria were: 1= completely
      retained; 2= partial loss; 3= total loss. The Pearson Chi-square test was used for each
      evaluation period.
    

Detailed description: 
      Thirteen patients with a mean age of 20.5 (range 19-22) were selected among the patients
      seeking routine dental care from Conservative Dentistry Department who met the inclusion
      criteria. Inclusion criteria were: good oral hygiene and and the absence of caries,
      previously placed restorations, bruxism and an allergy to the materials tested.

      Bitewing radiographs were taken. Pellicle and any remaining plaque on the fissures were
      removed by using slurry of pumice with a slow-speed handpiece. All restorative procedures
      were performed by the same operator. The teeth were assigned for different group by using a
      table of random numbers.

      Group 1 (SB2): Etched with 35% phosphoric acid gel for 30 s, rinsed and dried. Adper Single
      Bond 2 (3M ESPE St. Paul MN. USA) applied and light cured for 10s with a LED device (Demi
      Plus; Kerr, Switzerland) Group 2 (SBU-ER) : Etched with 35% phosphoric acid gel for 30s,
      rinsed and dried. Single Bond Universal Adhesive (3M ESPE St. Paul MN.USA) applied, gently
      air thinned for 5 s and light cured for 10s with a LED device Group 3 (SBU-SE): Single Bond
      Universal Adhesive (3M ESPE St. Paul MN.USA) applied for 20 s with vigorous agitation, gently
      air thinned for 5 s and light cured for 10 s with a LED device A nanofilled fissure sealant,
      Fissurit FX (Voco,Cuxhaven,Germany) was applied to the fissures and air entrapment was
      prevented by carefull spreading with a dental probe. The sealant material was light-cured for
      20 seconds with LED. The occlusion was checked with articulating paper. Fine-grit diamond
      burs (Diatech, Swiss Dental, Switzerland) and rubber cups (Edenta AG, AU SG, Switzerland).
      were used for finishing and polishing.

      Each restoration was evaluated at baseline,1week after treatment and 6, 12, 18 and 24 months.
      Evaluation of restorations was carried out by two calibrated examiners who were unaware of
      group allocation and who were not involved with the treatment procedures, by the help of a
      mirror, blunt explorer and air stream. Caries formation was evaluated as present or absent
      and the sealants were evaluated according to the following criteria: 1= Completely retained
      2= Partial loss 3= Total loss.
    

Intervention name(s): fissure sealant application
Intervention type(s): Procedure
Intervention description(s): fissure sealants were placed after differnt adhesive strategies used
Allocation: Randomized
Intervention model: Factorial Assignment
Masking: Single (Participant)
Primary purpose: Prevention
Keywords: fissure sealant, adhesive