Thermal damage and excision time of micro and super pulsed diode lasers
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Clinical and Experimental Dental Research
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Objectives: The primary aim of this ex vivo study was to evaluate thermal damage
and cutting efficiency of micro and super pulsed diode lasers. The secondary aim
was to suggest a guideline to perform simple surgical excisions adequate for
histopathological evaluation. Material and Methods: Ten groups of 10 specimens of pig tongues were excised
using a blade (G1), a micro pulsed (G2–G9), and a super pulsed diode (G10) lasers.
Different output power, pulse duration, pulse interval, and duty cycle were tested.
Quantitative measures of thermal damage and excision times were recorded.
Statistical analysis was performed at a significance level of 5%. Results: The control group (G1) presented no thermal damage. Within the laser
groups (G2–G10), no statistically significant differences in depth of thermal damage
(μm) were noted. G3 showed significantly less area of thermal damage (mm2) when
compared with G7 and G9 (p < .05). The median excision time of the control group
and super pulsed diode laser group were significantly lower (p < .001) than the micro
pulsed diode laser groups. Conclusions: The cutting efficiency of the super pulsed diode laser is comparable to
traditional blade, and with appropriate parameters, these lasers can produce
predictable surgical outcomes with less collateral damage.
Como referenciar
PRADO, MARILIZA C.O.; NWIZU, NGOZI N.; PATEL, SHALIZEH A.; STRECKFUS, CHARLES F.; ZEZELL, DENISE M.; BARROS, JULIANA. Thermal damage and excision time of micro and super pulsed diode lasers: a comparative ex vivo analysis. Clinical and Experimental Dental Research, v. 8, n. 6, p. 1655-1663, 2022. DOI: 10.1002/cre2.670. Disponível em: http://repositorio.ipen.br/handle/123456789/33579. Acesso em: 20 Mar 2026.
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