The effect of gum chewing on xerostomia and salivary flow rate in elderly and medically compromised subjects: a systematic review and meta-analysis

被引:19
作者
Dodds, Michael W. J. [1 ]
Haddou, Mohamed Ben [2 ]
Day, Jon E. L. [3 ]
机构
[1] Mars Wrigley, 1132 West Blackhawk St, Chicago, IL 60642 USA
[2] Mentis Sa, Ave Louise 367, B-1050 Brussels, Belgium
[3] Cerebrus Associates, White House,2 Meadrow, Godalming GU7 3HN, Surrey, England
关键词
Xerostomia; Dry mouth; Chewing gum; Mastication; Systematic review; Meta-analysis; Salivary flow rate; QUALITY-OF-LIFE; DRY MOUTH; ARTIFICIAL SALIVA; OLDER-PEOPLE; DOUBLE-BLIND; ORAL-HEALTH; THIRST; HEMODIALYSIS; STIMULATION; MANAGEMENT;
D O I
10.1186/s12903-023-03084-x
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
BackgroundXerostomia negatively affects quality of life. Symptoms include oral dryness; thirst; difficulty speaking, chewing, and swallowing food; oral discomfort; mouth soft tissue soreness and infections; and rampant tooth decay. The objective of this systematic review and meta-analysis was to investigate if gum chewing is an intervention that results in objective improvements in salivary flow rates and subjective relief from xerostomia.MethodWe searched electronic databases including Medline, Scopus, Web of Science, Embase, Cochrane Library (CDSR and Central), Google Scholar and the citations of review papers (last searched 31/03/23). The study populations included: 1) elderly people with xerostomia (> 60 years old, any gender, and severity of xerostomia), and 2) medically compromised people with xerostomia. The intervention of interest was gum chewing. Comparisons included gum chewing vs. no gum chewing. The outcomes included salivary flow rate, self-reported xerostomia, and thirst. All settings and study designs were included. We conducted a meta-analysis on studies where measurements of unstimulated whole salivary flow rate for both a gum chewing, and no gum chewing intervention (daily chewing of gum for two weeks or longer) were reported. We assessed risk of bias using Cochrane's RoB 2 and ROBINS-I tools.ResultsNine thousand six hundred and two studies were screened and 0.26% (n = 25) met the inclusion criteria for the systematic review. Two of the 25 papers had a high overall risk of bias. Of the 25 papers selected for the systematic review, six met the criteria to be included in the meta-analysis which confirmed a significant overall effect of gum on saliva flow outcomes compared to control (SMD = 0.44, 95% CI: 0.22-0.66; p = 0.00008; I-2 = 46.53%).ConclusionsChewing gum can increase unstimulated salivary flow rate in elderly and medically compromised people with xerostomia. Increasing the number of days over which gum is chewed increases the improvement in the rate of salivation. Gum chewing is linked with improvements in self-reported levels of xerostomia (although it is noted that no significant effects were detected in five of the studies reviewed). Future studies should eliminate sources of bias, standardise methods to measure salivary flow rate, and use a common instrument to measure subjective relief from xerostomia.Study registrationPROSPERO CRD42021254485.
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页数:23
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