Magnification of Iris through Clear Acrylic Resin in Ocular Prosthesis

Abstract

The study on the magnification of the clear acrylic resin in prosthetic dentistry is important but lacking. Hence, this research aimed to investigate the magnification of the iris in the ocular prosthesis with various thicknesses of clear heat cure acrylic resin. A total of 60 ocular prostheses were divided into six groups with various thicknesses of clear heat cure acrylic resin over the iris; T0 (control): no acrylic resin, T1: 2, T2: 4, T3: 6, T4: 8, and T5: 10 mm of clear acrylic resin over the iris. Each ocular prosthesis was manufactured from white acrylic, with a 10.250 mm iris. Then, the clear heat cure resin was placed over the iris, cured, then polished. The final diameter of the iris was measured with a vernier caliper. The sizes of the iris were compared among various groups using one-way ANOVA, and a significant level was chosen at p value = 0.01. The mean sizes of iris were T0 = 10.25, T1 = 10.92, T2 = 11.26, T3 = 11.91, T4 = 12.75, and T5 = 13.43 mm. The size of the iris was significantly different among the group (p < 0.0001). The magnification of the iris for different groups was 1.06 for T1, 1.10 for T2, 1.16 for T3, 1.24 for T4, and 1.31 for T5. The magnification of the iris increased as the thickness of clear heat cure acrylic resin over the iris is increased on the ocular prosthesis.

RETRACTED: Anti-fungal efficacy of Miswak Extract (Salvadora Persica) and commercial cleaner against Candida albicans on heat cured polymethylmethacrylate denture base

“…3 Candida albicans can be removed from heat cured acrylic denture base resin surfaces by toothbrushes, commercial chemical cleaners, household cleaners, plant materials microwave radiation, and photodynamic therapy. 1,3–7,28…”

“…3 Candida albicans can be removed from heat cured acrylic denture base resin surfaces by toothbrushes, commercial chemical cleaners, household cleaners, plant materials microwave radiation, and photodynamic therapy. 1,[3][4][5][6][7]28 Chemically Miswak is composed of octacosanol, 1-triacantanol, β-sitosterol, and β-sitosterol-3-O-β-dglucopyranoside. 29 Miswak is available as different types including Peelu (Salvadora persica), Neem (Azadirechtaindica), Zaitoon (Oleaeuropaea), Kikar (Accaciaarabica), Ban (Glycosmicpentaphylla), and Khiran (Capparisaphylla).…”

Polymethylmethacrylate-hydroxyapatite antibacterial and antifungal activity against oral bacteria: An in vitro study

“… 12 PMMA, as a polymer, can be widely applied across a diverse range of applications within the field of prosthodontics, such as dental prosthetic purposes, encompassing its utilization in crafting artificial teeth, forming the foundations of dentures, producing complete dentures, fashioning obturators, creating orthodontic retainers, fashioning temporary or provisional crowns, and undertaking repairs of dental prosthetic devices. 13 , 14 , 15 …”

Evaluation of additive manufacturing processes in the production of oculo-palpebral prosthesis

“…With the method proposed by the NGO "Mais Identidade", global work times can be reduced by half. 3 In the elaboration of a facial prosthesis, three main stages must be carried out 4 : obtaining the shape of the patient's anatomy, traditionally cast from a plaster mold; modelling, made from thermoplastic materials for modelling; and fabrication, using a negative version of the sculpture and placing layers of intrinsically characterized medical grade silicones; in addition to the fabrication of the ocular prosthesis, 5,6 with the different difficulties that this can entail, which will finally form part of the maxillofacial prosthesis. But, in the manufacturing process of these prostheses, the patient's self-perception, emotional stability, personality characteristics and social circumstances are the most important factors when treating maxillofacial defects, as well as the rehabilitation process.…”