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Background . The prevalence of neck and shoulder pain is high among employees in dentistry through exposure to highly monotonous and repetitive work. Physical exercise in the terms of specific neck and shoulder strength training for as little as 12 minutes and up to 1 hour per week has proven to be effective in relieving neck pain among workers with monotonous repetitive work such as office workers and industrial workers. Objectives . This study determined the effect of 6 minutes strength training a day, 5 days a week, for relieving neck and shoulder pain among those employees in dentistry who have frequent symptoms. Methods . In all 41 women and 2 men with neck and shoulder pain (intensity . 2 the last 3 month on a scale 0-9 and duration, . 8 days the last year) were cluster randomized to a reference group (REF) or a training group (TG), who were training with elastic tubing including the exercises: shrugs, lateral raise, reverse flies, and front raise. Primary outcome was intensity of neck and shoulder pain and secondary outcome was changes in work ability on a scale 0-4 (0 = best, 4 = worst). Results . At baseline the mean (} sd) pain intensity was: in the neck 5.0 (}1.67) the last 3 month, and in the right shoulder 4.0 (} 3.15) the last week for the training group. There were no significant differences between REF and TG. Compared with REF neck and right shoulder pain in TG decreased significantly 1.22 point in the neck (TG -2.32 (} 1,97) and REF -1.10 (} 2.03)) and 1.62 point in the right shoulder (TG -2.05 (} 1.78) and REF -0.43 (} 2.64)), respectively. In the TG . but not in REF . the work ability improved significantly from base line 1.21 (} 0,98) to follow-up 0.53 (} 0.70) compared with REF. Conclusion . A small amount of daily specific neck and shoulder strength training reduced neck- and shoulder pain and improved work ability among employees in dentistry.

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