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The International Journal of Oral &... 2021The aim of this systematic review was to evaluate the influence of zirconia and titanium as abutment materials on peri-implant soft tissue color. (Meta-Analysis)
Meta-Analysis
PURPOSE
The aim of this systematic review was to evaluate the influence of zirconia and titanium as abutment materials on peri-implant soft tissue color.
MATERIALS AND METHODS
The searched electronic databases included MEDLINE/PubMed, LILACS, Web of Science, Scopus, and LIVIVO. Two types of studies were included: randomized clinical trials (RCTs) and controlled clinical trials (CCTs) that compared zirconia (Zr) and titanium (Ti) abutments. The outcomes measured were as follows: implant crown esthetic index, visual analog scale, esthetic index, gingiva discoloration index-spectrophotometry, papilla index, recession index, and pink esthetic score. Two reviewers selected the records, assessed quality, and extracted data of included studies independently.
RESULTS
A total of 323 patients enrolled in 13 studies were included in this analysis with 11 RCTs and 2 CCTs. Due to the wide variety of methodologies used, meta-analysis was only possible for RCTs that performed spectrophotometric analysis. The use of zirconia or titanium for implant abutments does not seem to be the principal factor for influencing peri-implant soft tissue color. The meta-analysis showed no difference between zirconia and titanium abutments.
CONCLUSION
This study does not support any better advantage of the use of zirconia in comparison to the use of titanium related to peri-implant tissue color.
Topics: Crowns; Dental Abutments; Esthetics, Dental; Gingiva; Humans; Spectrophotometry; Titanium; Zirconium
PubMed: 34698712
DOI: 10.11607/jomi.8904 -
Journal of Stomatology, Oral and... Sep 2020Primordial odontogenic tumour (POT) is a novel entity that was described in 2014 and that is included in the group of benign mixed epithelial and mesenchymal odontogenic...
BACKGROUND
Primordial odontogenic tumour (POT) is a novel entity that was described in 2014 and that is included in the group of benign mixed epithelial and mesenchymal odontogenic tumours. In recent years, several papers have added new cases with some clinical and histopathological aspects that slightly differ from those described in the original report. The aim of this systematic review is to update all available data on POT published in the literature and to identify those features of the neoplasm that require further investigation.
MATERIALS AND METHODS
A systematic review of literature was conducted using PubMed, Embase, Web of Science and Scopus. Additional sources were also checked. Publications reporting cases with enough clinicopathological information were included, without any time or language restrictions. Histopathological or radiological studies were considered for qualitative analysis.
RESULTS
A total of 30 publications were included. Seventeen papers were used for quantitative analysis while 13 papers were used only for qualitative analysis. A total of 18 cases of POT were identified. Some clinical, radiographic, histopathological and therapeutic features were common in all reported cases, while other aspects of the neoplasm were inconsistent through published cases. This inconsistency was particularly remarkable when dealing with the histopathological features of the neoplasm.
DISCUSSION
Some issues about POT remain unclear and deserve to be clarified by future reports. The description of the odontogenic epithelium covering the ectomesenchyme is often contradictory, while it remains debatable whether peripheral ameloblastic epithelial islands or hard dental tissue deposition can occasionally occur within the tumour.
Topics: Epithelium; Humans; Odontogenic Tumors
PubMed: 32145435
DOI: 10.1016/j.jormas.2020.02.008 -
Advances in Clinical and Experimental... Jan 2024Rehabilitation in the anterior region requires specific conditions for success, such as the presence of papilla, emergence profile, and balance between pink and white... (Review)
Review
BACKGROUND
Rehabilitation in the anterior region requires specific conditions for success, such as the presence of papilla, emergence profile, and balance between pink and white esthetic.
OBJECTIVES
This systematic review aimed to evaluate the esthetic risk associated with immediate implant placement with immediate restoration in the anterior superior area, where the facial bone plate may be absent or deficient.
MATERIAL AND METHODS
The search was done in PubMed, Embase, Cochrane, Lilacs, Scopus, Scielo, and Google Scholar databases. The investigation involved clinical studies and observational studies published between January 2012 and July 2023. Studies were excluded if there was less than 12-month follow-up, no immediate restoration or facial defect, heavy smokers, or systemic disease. The risk of bias was assessed using the ROBINS-I and Modified-Cochrane RoB tools.
RESULTS
Twelve studies were included in this systematic review. The thinner the facial plate, the higher the alveolus's risk of gingival recession or shrinkage. There was an increased interproximal recession when the thin phenotype was associated with flap surgery. An increase in pink esthetic score (PES) was reached when immediate implant placement (IIP) and immediate restoration were done. Soft tissue augmentation achieved more gingival-level stability. Regardless of the initial phenotype, an esthetic outcome was delivered. The risk of bias was high in 1 study and moderate in 3 studies.
CONCLUSION
It is possible to conclude that esthetic results and increased final PES or patient satisfaction index in IIP treatments associated with immediate restoration could be obtained even in buccal bone wall defects or gingival recession, regardless of their extension.
PubMed: 38180330
DOI: 10.17219/acem/173573 -
Restorative Dentistry & Endodontics Nov 2023This study aimed to investigate the effectiveness of different topical/systemic agents in reducing the damage caused by bleaching gel to pulp tissue or cells.
OBJECTIVES
This study aimed to investigate the effectiveness of different topical/systemic agents in reducing the damage caused by bleaching gel to pulp tissue or cells.
MATERIALS AND METHODS
Electronic searches were performed in July 2023. and studies evaluating the effects of different topical or systemic agents on pulp inflammation or cytotoxicity after exposure to bleaching agents were included. The risk of bias was assessed.
RESULTS
Out of 1,112 articles, 27 were included. Nine animal studies evaluated remineralizing/anti-inflammatories agents in rat molars subjected to bleaching with 35%-38% hydrogen peroxide (HP). Five of these studies demonstrated a significant reduction in inflammation caused by HP when combined with bioglass or MI Paste Plus (GC America), or following KF-desensitizing or Otosporin treatment ( = 3). However, orally administered drugs did not reduce pulp inflammation ( = 4). Cytotoxicity ( = 17) was primarily assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay on human dental pulp cells and mouse dental papilla Cell-23 cells. Certain substances, including sodium ascorbate, butein, manganese chloride, and peroxidase, were found to reduce cytotoxicity, particularly when applied prior to bleaching. The risk of bias was high in animal studies and low in laboratory studies.
CONCLUSIONS
Few studies have evaluated agents to reduce the damage caused by bleaching gel to pulp tissue. Within the limitations of these studies, it was found that topical agents were effective in reducing pulp inflammation in animals and cytotoxicity. Further analyses with human pulp are required to substantiate these findings.
TRIAL REGISTRATION
PROSPERO Identifier: CRD42022337192.
PubMed: 38053785
DOI: 10.5395/rde.2023.48.e39 -
The Journal of Oral Implantology Oct 2015The aim of the present study was to conduct a systematic review of the literature to compare soft tissue aspects of immediate and delayed implant placement in esthetic...
The aim of the present study was to conduct a systematic review of the literature to compare soft tissue aspects of immediate and delayed implant placement in esthetic areas. This review of literature was conducted in the following databases: MEDLINE (PubMed), Lilacs, Scielo, EMBASE, and Cochrane Central Register of Controlled Trials (CENTRAL). For those studies that met the inclusion/exclusion criteria, the results were analyzed and summarized according to the treatment protocol used for implant placement. The primary parameters taken into consideration were papilla level (PL) and marginal mucosa level (MML) around implants. Four randomized controlled trials (RCT) were selected for analysis, but all were deemed as being of poor quality according to quality assessment. No studies reported any statistically significant differences concerning the soft tissue esthetic parameters analyzed around immediate or delayed implants at any follow-up periods reported. However, PL results seemed to be more reliable than were MML results, due to the PL standardization of the method of analysis, which showed a tendency for poorer results around immediately placed implants. In conclusion, although the results are based on only a few poor quality RCTs, both treatment options for implant placement demonstrated similar outcomes in the esthetic area, especially when PL was considered.
Topics: Dental Implantation, Endosseous; Esthetics, Dental; Randomized Controlled Trials as Topic
PubMed: 24475930
DOI: 10.1563/AAID-JOI-D-13-00095