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Table 2
Frequency of different lesions size in study groups

Study group Lesion Before 1st 3rd 7th 10th day
grade treatment day day day

Acyclovir with PBM

Zero 0 0 0 5 12
(41.6) (100.0)

One 1 (8.3%) 1 (8.3) 1 (8.3) 2 0
(16.6)

Two 3 (25.0%) 2 7 3 0
(16.7) (53.8) (25.0)

Three 8 (66.7%) 9 4 2 0
(75.0) (33.3) (16.6)

Acyclovir without
PBM

Zero 0 0 0 0 3 (25.0)

One 0 0 1 (8.3) 4 2 (16.6)
(33.3)

Two 5 (41.7) 5 5 6 6 (50.0)
(41.7) (41.7) (50.0)

Three 7 (58.3) 7 6 2 1 (8.3)
(58.3) (50.0) (16.6)

p-value 0.45 0.28 0.69 0.03 0.001
PBM: low-level laser therapy

Table 3

Comparison of recovery time between
two groups.

Study group Mean ± SD

Acyclovir with PBM 8.7 ± 1.5

Acyclovir without PBM 10.5 ± 1.1

p-value 0.005
SD: standard deviation; PBM: low-level laser therapy

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