الفهرس 
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Abstract
The efficiency of TPI for the treatment of MTrPs is well
documented in the literatures. Nevertheless, the comparison between
various injectable solutions is paramount with a view for determining the
most effective one. Thus, it was the aim of this study to assess and
compare the treatment effects of dextrose prolotherapy, saline, and
mepivacaine injections for deactivating MTrPs within the jaw muscles.
A total of 60 patients with active MTrPs within the jaw muscles
were included in this prospective study. The patients were randomly
allocated to one of three equal groups using computerized sequence
generation. The mean age of patients was 33.6, 34.35 and 35.15 years and
the mean duration of symptoms was 17.06, 8.61 and 21.67 months in the
dextrose, saline and LA groups respectively. All patients were females
except one male in the dextrose group. For all patients, three consecutive
weekly rounds of treatment were performed; 3 treatment sessions at an
interval of 2 days in the first week, 2 treatment sessions at an interval of 3
days in the second week and one treatment session at the end of the third
week. Before treatment and at one week and 12 weeks after the end of the
treatment sessions, current and worst pain severity was assessed by visual
analog scale (VAS), degree of tenderness at the trigger points (PPT) by
algometry, and the MMO.
There was a significant improvement in current and worst pain
severity at the 1st and 12th post-injection weeks compared to those at the
baseline in all the three groups. The improvement in TrP tenderness as
evident by the increase in PPT values compared to those at the baseline
was significant by the 1st post-injection week and insignificant at the
12th post-injection week in the dextrose and LA groups, and insignificant
at both intervals in the saline group. In all the three groups, the MMO
showed statistically insignificant difference throughout the study
intervals. The pain relieving as evident by decreasing VAS and increasing
PPT values was significant in the dextrose and LA groups at the 1st postinjection
week compared to saline group. At the 12th post-injection week,
the saline group showed statistically higher MMO mean than that of LA
group.