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Table 1 Search strategy used for each database with the corresponding results

From: Effect of periodontal therapy on COPD outcomes: a systematic review

Electronic databases Search strategy Limits Hits
Pubmed (Periodontitis OR periodontal disease OR gum disease OR periodontal health OR periodontal therapy OR periodontal treatment OR root scaling OR periodontal debridement OR root planing OR oral hygiene) AND (chronic obstructive pulmonary disease OR chronic bronchitis OR emphysema OR COPD) Publication Date 01/01/2000–31/03/2020
English language
Human species
185
Scopus (Periodontitis OR periodontal disease OR gum disease OR periodontal health OR periodontal therapy OR periodontal treatment OR root scaling OR periodontal debridement OR root planing OR oral hygiene) AND (chronic obstructive pulmonary disease OR chronic bronchitis OR emphysema OR COPD) Year 2000–2020
English language
55
Virtual Health Library (Periodontitis OR periodontal disease OR gum disease OR periodontal health OR periodontal therapy OR periodontal treatment OR root scaling OR periodontal debridement OR root planing OR oral hygiene) AND (chronic obstructive pulmonary disease OR chronic bronchitis OR emphysema OR COPD) Year 2000–2020
English Language
252
ScienceDirect ("Periodontitis" OR "periodontal disease" OR "periodontal therapy" OR "periodontal treatment" OR "root scaling" OR "periodontal debridement" OR "root planing" OR "oral hygiene") AND ("chronic obstructive pulmonary disease") Year 2000–2020
Article types Research articles
386
Wiley Online Library (Periodontitis OR periodontal disease OR gum disease OR periodontal health OR periodontal therapy OR periodontal treatment OR root scaling OR periodontal debridement OR root planing OR oral hygiene) AND (chronic obstructive pulmonary disease OR chronic bronchitis OR emphysema OR COPD) Publication date 01/2000–03/2020
Publication type Journals
213
Web of Science (Periodontitis OR periodontal disease OR gum disease OR periodontal health OR periodontal therapy OR periodontal treatment OR root scaling OR periodontal debridement OR root planing OR oral hygiene) AND (chronic obstructive pulmonary disease OR chronic bronchitis OR emphysema OR COPD) Publication Years 2000–2020
Document Types Article
Language English
161
Proquest Dissertation and Theses Global (Periodontitis OR periodontal disease OR gum disease OR periodontal health OR periodontal therapy OR periodontal treatment OR root scaling OR periodontal debridement OR root planing OR oral hygiene) AND (chronic obstructive pulmonary disease OR chronic bronchitis OR emphysema OR COPD) Publication Date 01/01/2020–31/03/20
Limit to Title and Abstract
English Language
124
Google Scholar ("Periodontitis" OR "periodontal disease" OR "periodontal health" OR "periodontal therapy" OR "periodontal treatment" OR "root scaling" OR "root planing" OR "oral hygiene") AND ("COPD" OR "chronic obstructive pulmonary disease") Limit to Title
English language
Publication Date 2000–2020
66