... ATTL was involved in the analysis and interpretation of data and contributed to writing the manuscript. AS was involved with interpretation of the data and revising the manuscript. MV was involved ... Nomura Y, Nakayama T, Hamajima N, Hanada N: Oral health status and health-related quality of life: a systematic review. J Oral Sci 2006, 48:1–7 35. Achat H, Kawachi I, Levine S, Berkey C, Coakley ... acquisition of data, analysis and interpretation of the data, interpretation of the results and drafted the manuscript. M do CL helped design the study, interpreted the data and reviewed the manuscript....