I had the pleasure of meeting and speaking with Dr. Saoirse O’Toole, Clinical Lecturer in Prosthodontics at King’s College London. Dr. O’Toole authored a flurry of articles about tooth wear and hypersensitivity and she came on to further speak about the latest in research on these topics.
References for the articles that are the subject of this conversation are referenced below.
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Chiraz Guessaier, CDA Oasis Manager
- Contact time between the tooth and the acid may be a more important risk factor for dentine hypersensitivity to frequency of dietary acid intake or frequency of toothbrushing. Other possible aetiological factors should be considered.
- Increased contact time with dietary acids and sipping swishing or holding drinks in the mouth prior to swallowing should be addressed as an aetiological factor in dentin hypersensitivity. Toothpaste abrasivity and toothbrush ﬁlament stiﬀness may play a greater role in dentin hypersensitivity compared to frequency of toothbrushing.
- Significantly increased odds ratios were observed when acids were consumed between meals in this cohort of patients. Universal advice to delay brushing after meals may not be substantiated.
- Prevention should be focused on avoiding dietary acids between meals, eliminating habits which increase contact time with the acid and reducing daily intake of acidic drinks. Toothbrushing after meals was not associated with tooth erosive wear. tooth brushing immediately after an acid challenge requires further investigation.
- The daily intake of soft drinks was associated with tooth wear, while those of fruits, fruit juices, and alcoholic drinks were not. The consumption of soft drinks with meals was the only factor consistently associated with tooth wear, irrespective of the method used to deﬁne meals versus snacks. The above associations were found with the number of surfaces with tooth wear (among those with the condition), but not with the odds of having tooth wear (among all participants).
- The consumption of soft drinks with meals was associated with moderate-to-severe tooth wear among American adults. Other acidic foods and beverages were not associated with tooth wear, regardless of their timing of consumption.
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- O’Toole S, Bernabé E, Moazzez R, Bartlett D. Timing of dietary acid intake and erosive tooth wear: A case-control study. J Dent. 2017 Jan;56:99-104. doi: 10.1016/j.jdent.2016.11.005. Epub 2016 Nov 14.
- O’Toole S, Bartlett D. The relationship between dentine hypersensitivity, dietary acid intake and erosive tooth wear. J Dent. 2017 Dec;67:84-87. doi: 10.1016/j.jdent.2017.10.002. Epub 2017 Oct 7
- Al-Zwaylif LH, O’Toole S, Bernabé E. Type and timing of dietary acid intake and tooth wear among American adults. J Public Health Dent. 2018 Jan 11. doi: 10.1111/jphd.12264. [Epub ahead of print]
- O’Toole S, Newton T, Moazzez R, Hasan A, Bartlett D. Randomised Controlled Clinical Trial Investigating The Impact of Implementation Planning on Behaviour Related to The Diet. Sci Rep. 2018 May 23;8(1):8024. doi: 10.1038/s41598-018-26418-0.