Linear dimensional accuracy of stereolithographic surgical guide after chemistry and physics sterilization

• Published in: Journal of stomatology, oral and maxillofacial surgery oral and maxillofacial surgery, 2022-10, Vol.123 (5), p.510-513
• Main Authors: MATHEUS, DIEGO MORAES DE, GOMES, ERICA ALVES, BARCELLOS, DAPHNE CAMARA, ROSETTI, ELIZABETH PIMENTEL, MARGONAR, ROGÉRIO
• Format: Article
• Language: English
• Subjects: Autoclave; Dental implants; Glutaral; Glutaraldheide; Humans; Physics; Prototyped surgical guides; Steam; Sterilization; Sterilization - methods
• ISSN: 2468-7855; 2468-7855
• DOI: 10.1016/j.jormas.2021.11.006

Objectives: The purpose of this study was to evaluate the dimensional stability of prototyped surgical guides after autoclave and 2% glutaraldehyde sterilization processes. Material and methods: Twenty prototyped surgical guides were prepared and submitted to two sterilization processes (n = 10): Physics - sterilization by autoclave (saturated water vapor under pressure, temperature of 126 to 130 °C, pressure of 1,7 at 1.9 kgf/cm2, 16 min); Chemistry - sterilization by 2% glutaraldehyde for 10 h. Six pre-established points were measured in the prototyped surgical guides, before and after sterilization, using a digital caliper rule. The comparisons were made using orthogonal contrasts using the linear model of mixed effects (random and fixed). Results: there are no significant differences between autoclave and glutaraldehyde 2% (p>0.05) there are significant differences after autoclave sterilization (p0.05). Conclusion: autoclave promoted dimensional alteration of the prototyped surgical guides, and the chemical sterilization by glutaraldehyde 2% did not cause dimensional alteration of the prototype surgical guides, being a favorable choice for sterilization. Clinical significance: the sterilization of surgical guides can be performed through the chemical process with 2% glutaraldehyde without changing the linear precision of the prototype surgical guides.