Short- and Medium-Term Effects of Low-Level Laser Therapy on Periodontal Status in Lingual Orthodontic Patients.
Photomed Laser Surg
; 34(7): 284-90, 2016 Jul.
Article
em En
| MEDLINE
| ID: mdl-27082031
ABSTRACT
OBJECTIVE:
The purpose of this study was to evaluate the short- and medium-term effects of low-level laser therapy (LLLT) applied in repeated doses in adults with a healthy periodontium treated by lingual orthodontic appliances. BACKGROUND DATA Plaque accumulation, in combination with difficulty in removing it in lingual orthodontic patients, can cause gingival inflammation.METHODS:
Twelve orthodontic patients scheduled for fixed lingual orthodontic treatment were selected. Clinical measurements [visible plaque index (VPI), bleeding on probing (BOP), and probing depth (PD), and collection of gingival crevicular fluid (GCF)], which was used to measure the levels of interleukin-1beta (IL-1ß) and tumor necrosis factor alpha (TNF-α), was performed before bonding the lingual device, and at the short-term (1, 2, 3 months) and medium-term (12 months) follow-up appointments. For each patient, quadrant 1 or 2 was randomly chosen for irradiation by a diode laser (λ = 670 nm, 190 mW, 6.05 W/cm(2), 60 sec/ tooth) (Laser Group) and the contralateral quadrant was used as the Control Group.RESULTS:
In both studied groups, a slight worsening of the periodontal condition was observed, which was evident at the 3rd month follow-up and which was mainly at the lingual side in the Control Group. The levels of IL-1ß in the GCF were significantly increased in the Control Group compared with the Laser Group at the 2nd and 3rd months after bonding. At the 12th month follow-up, an improvement of the inflammation was observed in both groups in the study.CONCLUSIONS:
LLLT showed short-term effects by preventing a substantial increase in IL-1ß levels. At medium-term follow-up, LLLT diminished VPI, BOP, and PD scores.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Aparelhos Ortodônticos
/
Terapia com Luz de Baixa Intensidade
/
Gengiva
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article