Gap finder
Search review questions
Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.
64 questions in 15 reviews · cluster CL0252
current versionsNo studies 22 · 34.4%Ungraded 28 · 43.8%Very low 7 · 10.9%Low 4 · 6.3%Moderate 3 · 4.7%High 0 · 0%
Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.
Intervention categories, outcome domains and clusters are a proposed key pending human validation. Clear all filters
| Question | Effect | Evidence | Status / GRADE |
|---|---|---|---|
Repair of a defective amalgam restoration in a permanent molar or premolar tooth (with amalgam) vs Replacement of a defective amalgam restoration in a permanent molar or premolar tooth (with amalgam) Extraction of tooth (due to decay) · Adults (16 years or over) with one or more defective amalgam restoration(s) in a molar or premolar tooth/teeth · Medium term (less than 5 years) or long term (5 years and above) Replacement versus repair of defective restorations in adults: amalgam (2014) · Cochrane | No randomised controlled trials were found | 0 studies | No studies |
Repair of a defective resin composite restoration in a permanent molar or premolar tooth (with resin composite) vs Replacement of a defective resin composite restoration in a permanent molar or premolar tooth (with resin composite) Perioperative or postoperative pain or discomfort · Adults (16 years or over) with one or more defective resin composite restoration(s) in a molar or premolar tooth/teeth · Medium term (less than 5 years) or long term (5 years and above) Replacement versus repair of defective restorations in adults: resin composite (2014) · Cochrane | No randomised controlled trials were found | 0 studies | No studies |
Repair of a defective resin composite restoration in a permanent molar or premolar tooth (with resin composite) vs Replacement of a defective resin composite restoration in a permanent molar or premolar tooth (with resin composite) Extraction of tooth (due to decay) · Adults (16 years or over) with one or more defective resin composite restoration(s) in a molar or premolar tooth/teeth · Medium term (less than 5 years) or long term (5 years and above) Replacement versus repair of defective restorations in adults: resin composite (2014) · Cochrane | No randomised controlled trials were found | 0 studies | No studies |
Repair of a defective amalgam restoration in a permanent molar or premolar tooth (with amalgam) vs Replacement of a defective amalgam restoration in a permanent molar or premolar tooth (with amalgam) Presence of clinical symptoms (pain, swelling, diagnosis of pulpitis, abscess formation) · Adults (16 years or over) with one or more defective amalgam restoration(s) in a molar or premolar tooth/teeth · Medium term (less than 5 years) or long term (5 years and above) Replacement versus repair of defective restorations in adults: amalgam (2014) · Cochrane | No randomised controlled trials were found | 0 studies | No studies |
Repair of a defective amalgam restoration in a permanent molar or premolar tooth (with amalgam) vs Replacement of a defective amalgam restoration in a permanent molar or premolar tooth (with amalgam) Further restoration required (repair, restoration, placement of crown/inlay, root filling) · Adults (16 years or over) with one or more defective amalgam restoration(s) in a molar or premolar tooth/teeth · Medium term (less than 5 years) or long term (5 years and above) Replacement versus repair of defective restorations in adults: amalgam (2014) · Cochrane | No randomised controlled trials were found | 0 studies | No studies |
Repair of a defective resin composite restoration in a permanent molar or premolar tooth (with resin composite) vs Replacement of a defective resin composite restoration in a permanent molar or premolar tooth (with resin composite) Patient satisfaction (measured by patient satisfaction or aesthetic scales) · Adults (16 years or over) with one or more defective resin composite restoration(s) in a molar or premolar tooth/teeth · Medium term (less than 5 years) or long term (5 years and above) Replacement versus repair of defective restorations in adults: resin composite (2014) · Cochrane | No randomised controlled trials were found | 0 studies | No studies |
No dentinal caries removal (caries sealed under a preformed metal crown or restoration without removing dentinal caries) vs Complete caries removal Failure of restorations · Patients with carious teeth, affecting any tooth surface(s), in unrestored primary and permanent teeth · 1 year (2-year and 5-year data also available for Innes 2007) Operative caries management in adults and children (2013) · Cochrane | RR 0.08 [0.02, 0.26] | 1 study · 132 participants | Moderate |
Resin composite restorations (filling and bonding systems) containing antibacterial agents vs Composite restorations not containing antibacterial agents Patient's view and satisfaction with the treatment · Adults and adolescents in any age group with restorations in the permanent dentition and children with restorations in… Antibacterial agents in composite restorations for the prevention of dental caries (2013) · Cochrane | No studies were included in this review, as we were unable to find any trials directly comparing antibacterial containing composites to other active interventions or controls. | 0 studies | No studies |
Resin composite restorations (filling and bonding systems) containing antibacterial agents vs Composite restorations not containing antibacterial agents Longevity of restorations (time to failure in months) · Adults and adolescents in any age group with restorations in the permanent dentition and children with restorations in… Antibacterial agents in composite restorations for the prevention of dental caries (2013) · Cochrane | No studies were included in this review, as we were unable to find any trials directly comparing antibacterial containing composites to other active interventions or controls. | 0 studies | No studies |
No dentinal caries removal (caries sealed under a preformed metal crown or restoration without removing dentinal caries) vs Complete caries removal Signs or symptoms of pulpal disease · Patients with carious teeth, affecting any tooth surface(s), in unrestored primary and permanent teeth · 1 year Operative caries management in adults and children (2013) · Cochrane | RR 0.20 [0.02, 1.72] | 1 study · 132 participants | Moderate |
Dental fillings (restorations) vs Dental extractions Outcome NR · Children aged 12 years or younger with tooth decay involving at least one tooth in the primary dentition, symptomatic… · Minimum 6 months follow-up Dental fillings for the treatment of caries in the primary dentition (2009) · Cochrane | "No studies were found that compared restorations versus extractions or no treatment as an intervention in children with caries in the primary dentition." | NR | No studies |
Dental fillings (restorations) vs No treatment Outcome NR · Children aged 12 years or younger with tooth decay involving at least one tooth in the primary dentition, symptomatic… · Minimum 6 months follow-up Dental fillings for the treatment of caries in the primary dentition (2009) · Cochrane | "No studies were found that compared restorations versus extractions or no treatment as an intervention in children with caries in the primary dentition." | NR | No studies |
Post and core restoration with a ferrule vs Post and core restoration without a ferrule Outcome NR · Participants with permanent endodontically-treated (root-filled) teeth for which a post is indicated to retain the… · Minimum 6 months (planned) Root canal posts for the restoration of root filled teeth (2007) · Cochrane | No included trial evaluated the presence of a ferrule (a planned secondary comparison); no eligible study identified. | 0 studies | No studies |
Direct composite restoration (final restoration) vs Full-coverage metal-ceramic crown Clinical failure (post dislodgement) · Participants with endodontically-treated permanent premolars restored with a carbon-fibre post (Category III) · 36 months (3 years); dislodgement assessed at 24 months Root canal posts for the restoration of root filled teeth (2007) · Cochrane | RR 1.85 [0.17, 19.8] | 1 study · 104 participants | Ungraded |