International Journal of Clinical Preventive Dentistry

Korean Academy of Preventive Dentistry (대한예방치과학회)
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SEM Findings on the Obstruction of the Dentinal Tubules by Fluoride Application Methods

  • Lee, Jae-Rin (Oracle Dental Clinic, Pyeongtaek, Graduate School, Dankook University) ;
  • Mun, Yoon-Hee (Department of Oral Health, Graduate School, Dankook University) ;
  • Jung, Su-Jin (Department of Oral Health, Graduate School, Dankook University) ;
  • Lee, Mi-Ra (Department of Oral Health, Graduate School, Dankook University)
  • Published : 2010.09.30
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Abstract

Objective: The purpose of this study was to discover the effect of fluoride for desensitization treatment. Materials and Methods: We sectioned extracted 15 healthy human 1st and 2nd molar teeth into 6 pieces to make 90 specimens in total. The specimens are divided into 6 groups (15 specimens for each group). Group 1 is the control group with no treatment at all, Group 2 is treated with topical application of NaF solution, Group 3 with NaF iontophoresis, Group 4 with APF gel, Group 5 with neutral gel and Group 6 with fluoride varnish. After topical application, the surface of each group was observed with SEM and the obstruction level of the dentinal tubules was calculated. Results: The obstruction level of Group 1 with no treatment is 1.89${\pm}$0.9, which is statistically valid enough to indicate that its obstruction level is lower than other groups which were treated with topical application of flour (p<0.05). The obstruction level of Group 2 with topical application of NaF solution is 2.85${\pm}$0.84 while that of Group 3 with NaF iontophoresis is 3.69${\pm}$0.2, which is statistically valid enough to indicate that the obstruction level of iontophoresis is higher than that of topical application (p<0.05). The obstruction level of Group 4 with APF gel application is 3.79${\pm}$0.42 while that of Group 5 with neutral gel application is 3.28${\pm}$0.3, which is statistically valid enough to indicate that the obstruction level of acid gel is higher than that of neutral gel application (p<0.05). The obstruction level of Group 6 with fluoride varnish is 3.92${\pm}$0.2, which is statistically valid enough to indicate that the obstruction level of Group 6 is higher than NaF solid application, iontophoresis and neutral gel application (p<0.05). Conclusion: It is concluded that in desensitization treatment, fluoride varnish application, iontophoresis and APF gel topical application can be clinically useful among by various fluoride applications when it is evaluated in obstruction level.

Keywords

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