Table 1.

Specific keywords and index terms used in database searches

Database	Keywords and Index Terms
PubMed	(“Tooth Loss”[MeSH] OR “tooth loss” OR “dentition status” OR “functional dentition” OR “tooth retention” OR “number of teeth” OR edentulism OR “functional units”) AND (“Diabetes Mellitus/mortality”[MeSH] OR “glycemic control” OR diabetes OR (diabetes AND (mortality OR morbidity))) AND (“Aged”[MeSH] OR aged OR aging OR elder OR elderly OR geriatric OR “older adult” OR “dependent older”)
Web of Science	(“tooth loss” OR “dentition status” OR “functional dentition” OR “tooth retention” OR “number of teeth” OR edentulism OR “functional units”) AND (“glycemic control” OR diabetes OR (diabetes AND (mortality OR morbidity)) AND (aged OR aging OR elder OR elderly OR geriatric OR “older adult” OR “dependent older”)
Embase	(‘tooth loss’/exp. OR ‘tooth loss’ OR ‘dentition status’ OR ‘functional dentition’ OR ‘tooth retention’ OR ‘number of teeth’ OR ‘edentulism’/exp. OR edentulism OR ‘functional units’) AND (‘diabetes mellitus’/exp. OR ‘glycemic control’/exp. OR (diabetes AND (‘mortality’/exp. OR ‘mortality’))) AND (‘aged’/exp. OR aged OR ‘aging’/exp. OR aging OR elder OR ‘elderly’/exp. OR elderly OR ‘geriatric’/exp. OR geriatric OR ‘older adult’/exp. OR ‘older adult’ OR ‘dependent older’)
CINAHL	(“tooth loss” OR “dentition status” OR “functional dentition” OR “tooth retention” OR “number of teeth” OR edentulism OR “functional units”) AND (“glycemic control” OR diabetes OR (diabetes AND (mortality OR morbidity)) AND (aged OR aging OR elder OR elderly OR geriatric OR “older adult” OR “dependent older”)