Precise imaging and measurement via laser technology for craniofacial and orthodontics applications

Abstract

In craniofacial and orthodontics applications, most local practitioners still use traditional contact method (e.g. calipers) for measuring the appropriate physical (i.e. craniofacial and orthodontics) models. The traditional method is slow and subject to significant errors. Consequently, specialised automated imaging (i.e. non-contact, close range, real time/fast, and precise) and measurement techniques are needed for these applications. This paper discusses the research on the uses of latest technologies for craniofacial and orthodontics applications. The research has developed a procedure for precise imaging (with laser technology), 3D modelling, measurement and analysis of digital craniofacial and orthodontics models. The results show that measurements to sub-mm or mm-level precision are achievable, indicating the suitability of the approach for practical applications. The new approach (i.e. fast, precise, and digital-based) also opens more potential applications, as further analysis could be performed on the digital models depending on the requirements.