Background: Institutionalization is a global phenomenon and its impact on elderly's quality of life (QoL) is under discussion. This systematic review and meta-analysis evaluated the influence of the institutionalization on elderly's QoL. Methods: Searches were performed in Medline, Scopus, Web of Science, Lilacs, Cochrane Library and SIGLE by two independent reviewers up to May 2019. The eligibility criteria were based on PECO strategy, considering observational studies in elderly (P), which were (E) or not (C) institutionalized to identify differences in their QoL (O). For qualitative synthesis, data were extracted and risk of bias was evaluated through a validated guideline. Meta-analysis was based on Mean Difference (MD) and Standard Mean Difference (SMD) calculation (p ≤ 0.05). The evidence was quality-tested using Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. Results: The initial search identified 3841 articles. Duplicates were removed, titles and abstracts were read and eligibility criteria were applied, remaining 16 sixteen cross-sectional studies that were included for data extraction and qualitative synthesis. Out of 16 articles, 14 evaluated the Health-Related Quality of Life, using Leipad (n = 2), WHOQOL-BREF and/or OLD (n = 8), SF-36 or RAND-36 (n = 4) questionnaires, and two assessed the Oral Health-Related Quality of Life, through GOHAI questionnaire. One eligible article was considered as low risk of bias. In the meta-analysis, 12 studies were included. Leipad questionnaire did not show differences on elderly's QoL (MD 0.11 [− 0.10, 0.32] I 2 = 76%). Differences on elderly's QoL were detected through WHOQOL-BREF (SMD-0.70 [CI95%: − 0.94, − 0.47] I 2 = 93%), WHOQOL-OLD (SMD-1.13 [− 1.47, − 0.80] I 2 = 91%) and SF-36/RAND-36 (MD-5.97 [CI95%: − 11.29, − 0.64] I 2 = 90%). All studies had very low or low certainty of evidence, since the study design influenced evidence classification, and show high heterogeneity. Conclusion: Although the institutionalization influences negatively the elderly's QoL, further well-designed studies are needed to confirm this evidence.

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Summary Background Edentulism can reduce mastication, leading to changes in food pattern, with possible consequences to masticatory muscle thickness. Objectives This study verified masticatory function and oral perception in subjects who did not use lower CDs, and whether the insertion of new upper and lower CDs would improve such variables. Methods Fifteen edentulous elderly who wore only the upper CD were selected and received new upper and lower CD. Volunteers were evaluated at baseline and after 1, 3 and 6 months of new prosthesis use. Masticatory performance (MP) was assessed by the sieving method (X50 values). Masseter thickness (MT) was evaluated by ultrasonography. Oral sensorial ability (OSA) was assessed by oral stereognosis test and maximum tongue pressure (MTP) was verified by pressure sensors. Data were submitted to repeated measures ANOVA and Tukey‐Kramer posthoc tests (α = 0.05). Correlation between OSA and MTP was verified by Person's correlation. Results X50 and MTP decreased (P < 0.05) after 1 month and remained stable (P > 0.05) for next assessments. After 3 months, MT in rest position was increased (P < 0.05), while during maximum voluntary contraction 1 month was enough to increase MT (P < 0.05). There were no differences for OSA (P > 0.05) and no correlation between OSA and MTP. Conclusion Masticatory performance and masseter thickness of elderly who did not use the lower dentures were improved after 2 months using new upper and lower CDs. However, new CDs in both dental arch decreased MTP. Brazilian Registry of Clinical Trials (ReBEC #RBR‐37gdst).

Aims:To compare prosthesis satisfaction and nutritional intake of edentulous elderly people wearing a conventional complete denture (CD) with those wearing a single implant mandibular overdenture (SIO) after 6 months of use. Methods and results:Completely edentulous elderly patients (n = 22) were divided between a group rehabilitated with CDs in both dental arches and a group receiving a mandibular SIO with a conventional CD in the upper arch (n = 11/group). Patients completed a visual analog scale for degree of satisfaction with their prostheses in seven categories. Nutritional intake of patients (based on patient diaries) was evaluated over a 3-day period. SIO wearers were more satisfied with their prostheses than were CD wearers. Six months after rehabilitation, the SIO group consumed foods higher in vitamins B2 and B6, whereas the CD group consumed more sodium.Conclusion: SIO wearers are more satisfied with their prosthesis and consume greater amounts of vitamin B2 and vitamin B6 in their diets than CD wearers. Brazilian Registry of Clinical Trials (#RBR-3kgttj and #RBR-37gdst).

This in vitro study aimed to evaluate the gaps length and depth of cure of dual-cure bulk-fill resin composites inserted in box-shaped preparations. Box-shaped preparations (4 mm deep) were made in fifteen human third-molars and divided into three groups according to the resin composites (n=5): Dual-cure bulk-fill BulkEZ (BEZ); Dual-cure bulk-fill HyperFIL (HF); and Tetric Evoceram Bulk-fill (TETRIC), as control. Gaps length (%) was evaluated in tooth-restoration interface with micro-computed tomography (µCT). The restorations were sectioned, and the degree of conversion (DC) and Knoop microhardness were evaluated at five depths (0.3, 1, 2, 3, and 4 mm). Microhardness data were statistically evaluated using absolute values (KHN) and relative values (microhardness percentages in relation to top). Gaps length (%) increased in the following order: BEZ=TETRIC<HF. The microhardness percentages in relation to top significantly decreased from 2 mm for TETRIC and 3 mm for HF. BEZ had constant microhardness and DC at all depths, while HF and TETRIC presented a significant decrease on DC at 4 mm. Dual-cure bulk-fill composites did not reduce gaps compared to light-cure bulk-fill, but they can improve depth of cure of bulk-filled restorations.