Table 1.
Complete overview of the search methodology. Records identified by databases: 1088; records selected for qualitative analysis: 36.
| Database—Provider | Key Words | Search Details | Number of Records | Number of Records) after Limiting by Year of Publication (last 30 years) |
Number of Studies Dealing with the Topic of Alzheimer’s Disease in Relation to Oral Inflammatory Processes and Bacteria | Number of Articles Investigating the Role of Periodontal Bacteria in the Onset and Progression of Alzheimer’s Disease | Articles after Removing Overlaps | Number of Articles Included in the Qualitative Analysis |
|---|---|---|---|---|---|---|---|---|
| PubMed | “Alzheimer’s Disease” AND “periodontal” | “Alzheimer’s Disease” (All Fields) AND “periodontal” (All Fields) | 96 | 96 | 48 | 7 | ||
| PubMed | “Alzheimer’s Disease” AND “periodontitis” | “Alzheimer’s Disease” (All Fields) AND “periodontitis” (All Fields] | 87 | 87 | 56 | 9 | ||
| PubMed | “dementia “AND “periodontal” | “dementia “(All Fields] AND “periodontal” (All Fields) | 118 | 117 | 41 | 3 | ||
| PubMed | “Alzheimer’s Disease” AND “actinomycetemcomitans” | “Alzheimer’s Disease” (All Fields] AND “actinomycetemcomitans” (All Fields) | 3 | 3 | 3 | 2 | ||
| PubMed | “Alzheimer’s Disease” AND “gingivalis “ | “Alzheimer’s Disease” (All Fields) AND “gingivalis” (All Fields) | 34 | 34 | 20 | 20 | ||
| PubMed | “Alzheimer’s Disease” AND “denticola “ | “Alzheimer’s Disease” (All Fields) AND “denticola” (All Fields) | 9 | 9 | 7 | 6 | ||
| PubMed | “Alzheimer’s Disease” AND “nucleatum” | “Alzheimer’s Disease” (All Fields) AND “nucleatum” (All Fields) | 4 | 4 | 4 | 3 | ||
| Scopus | “Alzheimer’s Disease” AND “periodontal“ | TITLE-ABS-KEY (“Alzheimer’s Disease” AND “periodontal”) | 234 | 232 | 84 | 8 | ||
| Scopus | “Alzheimer’s Disease” AND “periodontitis” | TITLE-ABS-KEY (“Alzheimer’s Disease” AND “periodontitis”) | 182 | 182 | 48 | 11 | ||
| Scopus | “dementia “AND “periodontal” | TITLE-ABS-KEY (“dementia” AND “periodontal”) | 217 | 214 | 71 | 4 | ||
| Scopus | “Alzheimer’s Disease” AND “actinomycetemcomitans” | TITLE-ABS-KEY (“Alzheimer’s Disease” AND “actinomycetemcomitans”) | 8 | 8 | 7 | 7 | ||
| Scopus | “Alzheimer’s Disease” AND “gingivalis “ | TITLE-ABS-KEY (“Alzheimer’s Disease” AND “gingivalis “) | 64 | 64 | 31 | 19 | ||
| Scopus | “Alzheimer’s Disease” AND “denticola “ | TITLE-ABS-KEY (“Alzheimer’s Disease” AND “denticola”) | 20 | 20 | 16 | 9 | ||
| Scopus | “Alzheimer’s Disease” AND “nucleatum” | TITLE-ABS-KEY (“Alzheimer’s Disease” AND “nucleatum”) | 12 | 12 | 8 | 6 | ||
| Total records | 1088 | 1082 | 444 | 114 | 36 | 15 |