Monitoring erosive tooth wear with intraoral 3D scanner: A feasibility study

Autor(es)

Machado, Alana Cristina ; Phillips, Thais Santiago ; Zimmerman, Richard ; Scaramucci, Tais ; Amaechi, Bennett Tochukwu

• Tipo de documento: Artigo Científico
• Fonte: AMERICAN JOURNAL OF DENTISTRY; v. 35, n. 1, p. 6-pg., 2022-02-01.

Resumo

Purpose: To evaluate in vitro the potential of an intraoral scanner (IOS) to monitor erosive tooth wear (ETW) using different alignment software with distinct quantitative measurement metrics. Methods: 15 unpolished bovine crowns were exposed to citric acid (pH similar to 2.5) at 24-hour intervals up to 168 hours. At baseline and after each acid exposure episode, the teeth were scanned with IOS (3Shape TRIOS 3). Scanned images from each data point were superimposed on baseline image using WearCompare software to obtain volume loss (mm3) and area loss (mm(2)) and using IOS built-in software (3Shape TRIOS Patient Monitoring) to obtain depth loss (mm). Pearson's test was used to determine the correlation between acid exposure time (h) and each outcome measure (alpha= 0.05). Results: As the acid exposure time increased, the lesion parameters (depth, volume, and area) increased. Friedman's test showed that relative to baseline volume loss became significant (P< 0.05) after 72 hours from median 11.48 mm(3) (IQI 25% = 8.72 mm(3)), eroded area became significant (P< 0.05) from median 48.67 mm(2) (IQI 25% = 44.46 mm(2), P< 0.05) after 96 hours, and erosion depth became significant (P< 0.05) from median 0.69 mm (IQI 25% = 0.66 mm(2)) after 144 hours. A strong correlation was observed between depth (mm(2)) and time (r= 0.9993 P< 0.0001), volume (mm(3)) and time (r= 0.9968, P< 0.0001), and area (mm(2)) and time (r= 0.9475, P= 0.0003). (AU)

• Processo FAPESP: 17/24714-3 - Efeito da ordem de aplicação de dentifrícios e soluções contendo fluoretos e estanho na progressão do desgaste erosivo em esmalte e dentina bovina - estudo in situ
• Beneficiário: Alana Cristina Machado
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 19/11368-5 - Influência de produtos contendo flúor e estanho na espessura da película salivar adquirida e fluoreto fracamente ligado ao esmalte - um estudo in situ
• Beneficiário: Alana Cristina Machado
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado