Details

Autor(en) / Beteiligte

• Patiño-Marín, Nuria
• Martínez, Flavio
• Loyola-Rodríguez, Juan Pablo
• Tenorio-Govea, Enrique
• Brito-Orta, Ma. Dolores
• Rodríguez-Martínez, Manuel

Titel

A novel procedure for evaluating gingival perfusion status using laser-Doppler flowmetry

Ist Teil von

• Journal of clinical periodontology, 2005-03, Vol.32 (3), p.231-237

Ort / Verlag

Oxford, UK: Munksgaard International Publishers

Erscheinungsjahr

2005

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• Objectives: To systematize a procedure that allows one to characterize the perfusion response pattern of attached gingiva to the topical and transitory compression of alveolar mucose, using laser‐Doppler flowmetry. Material and methods: A cross‐sectional study was carried out, in 20 healthy adult subjects of either sex, with teeth in antero‐mandibular sextant but without periodontitis at the lower left lateral incisor (LLLI). Sample was selected by convenience non‐probability sampling. Gingival perfusion was evaluated at labial LLLI attached gingiva using a specially designed gingival tray. Two perfusion recordings were carried out 5 min. apart, each one consisting of a 40 s control phase, a 22 s compression phase and a 40 s post‐compression phase. During compression phase, LLLI alveolar mucose was compressed with a wood‐mounted cotton swab until the perfusion decreased to about 1/5 of its control perfusion value. Results: Integrated primary basal flow (IPBF) during control phase was of 14,210±1075 perfusion units (PU), whereas integrated flow during compression phase was of 1651±202 PU (p<0.05). After compression was released, integrated total secondary real flow was 13,322±1513 PU (p<0.05) which represented a 91.3±3.8% of IPBF. Gingival compression propitiated an induced flow debt (IFD) of 6478±781 PU, which increased in 980±482 PU after compression was released, representing 18% of the IFD (Debt index). Conclusions: A hypoaemic response in reaction to topical and transitory LLLI alveolar mucose compression was observed. Debt index and the ITSRF% are reproducible indices of microvascular perfusion response whose validation under pathological circumstances remains to be evaluated.