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[Study of the kinetics of accumulation and distribution of the photosensitizer photoditazin in the oral mucosa in patients with lichen planus]. / Izuchenie kinetiki nakopleniya i raspredeleniya fotosensibilizatora fotoditazin v slizistoi obolochke rta u patsientov s krasnym ploskim lishaem.
Rabinovich, O F; Rabinovich, I M; Umarova, K V.
Afiliação
  • Rabinovich OF; Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia.
  • Rabinovich IM; Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia.
  • Umarova KV; Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia.
Stomatologiia (Mosk) ; 103(1): 12-15, 2024.
Article em Ru | MEDLINE | ID: mdl-38372601
ABSTRACT
THE AIM OF THE STUDY Was to explore the accumulation and distribution of the photosensitizer Photoditazine in the oral mucosa when applied to pathological lesions in patients with severe forms of lichen planus. MATERIAL AND

METHODS:

A clinical and laboratory examination was carried out in 50 patients with severe forms of lichen planus (bullous and erosive-ulcerative) aged 18 to 70 years, including 6 men and 44 women. For autofluorescent imaging a LED device with a wavelength in the violet region of the spectrum (400±10 nm) was used. Quantitative registration of the kinetics of accumulation and distribution of the photosensitizer was carried out using the method of local fluorescence spectroscopy by measuring the fluorescence spectra.

RESULTS:

The measurements were made before applying the photosensitizer, 10, 20 and 30 minutes after application. The study showed that in most patients with erosive-ulcerative and bullous forms of lichen planus, the accumulation of the photosensitizer in the lesions on the oral mucosa increased as the exposure time increased from 20 to 30 minutes. The fastest accumulation of the photosensitizer occurred in the areas of mucosal lesions with the most pronounced vascularization, namely, in the area of the tongue and the bottom of the oral cavity.

CONCLUSION:

Using the method of local fluorescence spectroscopy, the kinetics of accumulation and destruction of photosensitizer in pathological areas of the oral mucosa was determined, and therefore the optimal time of laser exposure to the lesion was determined.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Líquen Plano Bucal / Líquen Plano Limite: Female / Humans / Male Idioma: Ru Revista: Stomatologiia (Mosk) Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Federação Russa

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Líquen Plano Bucal / Líquen Plano Limite: Female / Humans / Male Idioma: Ru Revista: Stomatologiia (Mosk) Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Federação Russa