1. The impact of malocclusion and its treatment on quality of life: a literature review;Zhang;Int J Paediatr Dent,2006
2. Digital deformities and dental malocclusion due to finger sucking;DA;British journal of plastic surgery,1984
3. Jenny J. A social perspective on need and demand for orthodontic treatment. Int Dent J. 1975; 25(4):248-256.
4. Mohlin B, al-Saadi E, Andrup L, et al. Orthodontics in 12-year old children. Demand, treatment motivating factors and treatment decisions. Swed Dent J. 2002;26(2):89-98.
5. Vithanaarachchi VS, Nawarathne LS, Wijeyeweera RL. Eruption times and patterns of permanent teeth in Sri Lankan school children in Western province. Sri Lanka Dent J. 2018;48(01):25-31.