The Impact of Different Types of Orthodontic Appliances and Its Location in Producing CT Scan Artefacts

Fixed orthodontic appliances can produce metal artefacts in CT images which may degrade the diagnostic image quality. The study aimed to evaluate based on types and location of metallic non-metallic brackets. This is an in-vitro cross-sectional study. Four different brackets (stainless steel, titanium, monocrystalline, polycrystalline ceramic bracket) were bonded consecutively four locations cadaveric skull. All scans performed by a single operator using same machine followed standard scanning protocol. Artefact intensity for all data sets was quantified calculating deviation (SD) grey values within dataset following method. One-way ANOVA Bonferroni test used analysis. mean artefact score stainless steel bracket significantly (p < 0.001) high comparison with other Besides, (p=0.002) low when placed unilaterally. Stainless produced significant amount noise Thus, be better alternative patient need frequent scan.