2019
Proposed classification for
interproximal contacts of
primary molars using CBCT
In 2018, OXIS classification was put forth by Kirthiga, Muthu MS, and it has four categories - the O type, X type, I type, and S type.
2020
OXIS Classification of Interproximal Contacts of Primary Molars and Its Prevalence in Three- to Four-Year-Olds
The purpose of this study was to investigate the prevalence of different interproximal contact areas of primary molars, as described in the OXIS classification, in a group of three- to four-year-old caries-free children.
Prevalence and correlation of OXIS contacts using Cone Beam Computed Tomography (CBCT) images and photographs
The contact areas in between primary teeth are broader, flatter, and located further cervically when compared with the contact areas of permanent molars.
OXIS contact areas of primary molars – a two center cross-sectional study
Contact areas in primary teeth are known to be broader, flatter and situated farther gingivally than permanent teeth.