IADR Abstract Archives
The relationship between dietary acid intake, tooth brushing and dentine hypersensitivity
Objectives: To assess the relationship between dietary acid intake and dentine hypersensitivity (DH).
Methods: This is a secondary analysis on previously collected data from 600 participants with (n=300) and without (n=300) severe erosive tooth wear. Participants recruited from restorative clinics of King’s College London Dental Institute (REC Ref 14/EM/1171) were questioned on their self-reported DH, frequency and timing of dietary acid intake, habits associated with consumption of dietary acids and tooth brushing habits. Erosive tooth wear was assessed using Basic Erosive Wear Examination (BEWE). Differences in diet between those with self-reported DH and those without were analysed using descriptives and logistic regression in SPSS vers 23.
Results: Of those reporting with DH (n=272), 166 participants (61%) had tooth wear and 106 (39%) did not. A greater number of DH participants spent ≥ 10 min per sitting eating fruit (n=46) than those without DH (n=26, p=0.005). When drinking acidic drinks, a greater number of DH participants had a habit of sipping, swishing or holding drinks in the mouth prior to swallowing (n= 72) compared to those without DH (n= 38, p<0.001). More DH participants consumed 3+ dietary acids daily between meals (n=132) compared to those without DH (n=117), p=0.002. In logistic regression, strong associations with DH were observed with drinking habits (OR 2.33, 95% CI 1.40-3.88, p<0.001) and prolonged fruit consumption (OR 3.03, 95% CI 1.64-5.61, p<0.001). No relationship was observed between frequency of dietary acidic drink intake between meals and DH when other factors were controlled for.
Conclusions: The strongest associations between an acidic diet and DH were observed when ≥ 10 min was spent consuming fruit and sipping, swishing or holding an acidic drink in the mouth prior to swallowing. Contact time between the tooth and the acid may be a more important risk factor for dentine hypersensitivity compared to frequency of dietary acid intake.
Methods: This is a secondary analysis on previously collected data from 600 participants with (n=300) and without (n=300) severe erosive tooth wear. Participants recruited from restorative clinics of King’s College London Dental Institute (REC Ref 14/EM/1171) were questioned on their self-reported DH, frequency and timing of dietary acid intake, habits associated with consumption of dietary acids and tooth brushing habits. Erosive tooth wear was assessed using Basic Erosive Wear Examination (BEWE). Differences in diet between those with self-reported DH and those without were analysed using descriptives and logistic regression in SPSS vers 23.
Results: Of those reporting with DH (n=272), 166 participants (61%) had tooth wear and 106 (39%) did not. A greater number of DH participants spent ≥ 10 min per sitting eating fruit (n=46) than those without DH (n=26, p=0.005). When drinking acidic drinks, a greater number of DH participants had a habit of sipping, swishing or holding drinks in the mouth prior to swallowing (n= 72) compared to those without DH (n= 38, p<0.001). More DH participants consumed 3+ dietary acids daily between meals (n=132) compared to those without DH (n=117), p=0.002. In logistic regression, strong associations with DH were observed with drinking habits (OR 2.33, 95% CI 1.40-3.88, p<0.001) and prolonged fruit consumption (OR 3.03, 95% CI 1.64-5.61, p<0.001). No relationship was observed between frequency of dietary acidic drink intake between meals and DH when other factors were controlled for.
Conclusions: The strongest associations between an acidic diet and DH were observed when ≥ 10 min was spent consuming fruit and sipping, swishing or holding an acidic drink in the mouth prior to swallowing. Contact time between the tooth and the acid may be a more important risk factor for dentine hypersensitivity compared to frequency of dietary acid intake.