ABSTRACT
OBJECTIVE: This study evaluated the effectiveness of toothbrushing with whitening toothpaste in altering the shade of stained human enamel. MATERIALS AND METHODS: Thirty fragments of human enamel, stained with chlorhexidine/black tea underwent 1000 and 5000 brushing cycles (BC) with (n = 10): PLS (Gel Dental Day, Bitufo), Close Up White Now, Unilever (COVB) and regular (Gel Dental Night, Bitufo) toothpaste. Images were taken before staining (baseline), after staining (STN) and following 1000 and 5000 BC and were analyzed using the CIELAB parameters (ΔE, Δb and ΔL). STATISTICAL ANALYSIS USED: Data were submitted to two-way ANOVA (α = 0.05). RESULTS: ΔE was higher from STN to baseline; 1000 BC to STN and 5000 BC to STN (P < 0.001). Significant differences in Δb values were found from 1000 BC to STN and 5000 BC to STN. For COVB, greater ΔL was observed from 1000 BC to STN, what differed statistically from the regular toothpaste (P < 0.05). There was no difference between toothpaste when ΔL was calculated from 5000 CB to STN. CONCLUSIONS: Toothpaste containing COVB or PLS in association with 5000 BCs showed similar effectiveness in changing enamel shade; but after the first 1000 toothbrushing cycles, the use of COVB toothpaste promoted higher lightness in stained enamel.
ABSTRACT
Dentistry is constantly concerned with enabling better living conditions for patients, as well as providing comfort so that functions such as chewing, speaking, and swallowing may be executed properly and esthetically satisfactory. In edentulous patients, many of these functions are lost, but can be restored by prosthodontics. Within this context, the present article seeks to report a clinical case in which a maxillary complete denture was made for a patient presenting with maxillomandibular discrepancy and marked maxillary prognathism.
Uma constante preocupação da odontologia é de possibilitar melhores condições de vida aos pacientes, oferecendo-lhe conforto para que funções como mastigação, fonação e deglutição possam ser exercidas de maneira adequada e que apresente uma estética satisfatória. Com a perda dentária, muitas destas funções são perdidas, mas podem ser restabelecidas através do uso de prótese. Neste contexto, o presente artigo visa descrever a execução de um caso clínico onde foi confeccionada uma prótese total superior em paciente com discrepância maxilomandibular apresentando projeção acentuada da maxila em relação à mandíbula.
