Trial reportPloS one2019
A randomized clinical trial comparing Hall vs conventional technique in placing preformed metal crowns from Sudan.
Trial report in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 5 registered trials, which are not on this map. Cited by 26 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Randomized Clinical Trial Comparing Hall vs Conventional Technique in Placing Preformed Metal Crowns From Sudan
The Efficiency and Gingival Health Status of Hall Versus SDF Techniques in the Management of Carious Primary Molars: Randomized Clinical Trial
Evaluation of the Occlusal Effects of the Hall Technique and Investigation of Children's Satisfaction
Comparative Analysis of Hall Technique and Conventional Method for Stainless Steel Crown Placement in Primary Molars With Approximal Caries: A Randomized Controlled Trial at Primary Healthcare Corporation, Qatar
An 18-Month Split-Mouth Randomized Clinical Trial Comparing the Hall Technique, Silver Diamine Fluoride, and Compomer Restorations for the Management of Caries in Primary Molars in Children Aged 4-8 Years
Who cites it
26 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Comparative success of minimally invasive treatments for cavitated caries in primary teeth: a network meta-analysis.BMC oral health · 2025Pooled it
- Success rate of Hall Technique for restoring carious primary molars - systematic review and meta-analysis.Evidence-based dentistry · 2025Pooled it
- Cost-Effectiveness of Treatment Decisions for Early Childhood Caries in Infants and Toddlers: A Systematic Review.Medicina (Kaunas, Lithuania) · 2023Pooled it
- Conventional versus Hall technique for preformed metal crown restorations of carious primary molars-a randomised controlled trial comparing treatment duration and child and parental perceptions.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2026Trial
- Success rate and acceptability of conventional and modified hall crowns among children and parents: a randomised clinical trial.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2026Trial
- Two-year outcomes of hall technique and modified hall technique in deep carious lesions of primary molars: a randomized clinical trial.BMC oral health · 2026Trial
- Atraumatic restorative treatment compared to the Hall Technique for occluso-proximal carious lesions in primary molars; 36-month follow-up of a randomised control trial in a school setting.BMC oral health · 2020Trial
- Review
- Clinical Pathways in Managing High-Caries Children with Adverse Dental Histories.Medicina (Kaunas, Lithuania) · 2025Article
- Hall technology and conventional PMC technology: Progress and remaining challenge in extensive caries treatment.Medicine · 2025Review
- Association between lesion depth and placement technique with failures requiring extraction of preformed metal crowns in primary molars. A retrospective study.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2025Article
- The Hall technique: knowledge, practice, and concerns of dentists in primary care settings in the State of Qatar-a questionnaire-based survey.European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2024Article
- Combination of Silver Diamine Fluoride and Hall Technique for Caries Management in Primary Molars: A Randomized Controlled Trial.International journal of clinical pediatric dentistry · 2024Article
- Do Hall Technique Crowns Affect Intra-arch Dimensions? A Split-mouth Quasi-experimental Non-randomized Feasibility Pilot Study.International journal of clinical pediatric dentistry · 2024Article
- The Impact of Minimal Intervention Dentistry on Patient-Reported and Observation-Based Outcomes in the Pediatric Population: A Systematic Review and Meta-Analysis.Healthcare (Basel, Switzerland) · 2023Review
- Hall technique versus conventional preformed metal crowns: can paediatric dentists tell the difference on radiographs?European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry · 2023Article
- Efficacy of diode laser application versus silver diamine fluoride (SDF) as a modification of Hall technique in primary teeth.The Saudi dental journal · 2022Article
- Hall technique for primary teeth: A systematic review and meta-analysis.The Japanese dental science review · 2022Review
- Impact of COVID-19 Pandemic on Dental Treatment in Children: A Retrospective Cross-Sectional Analysis in Jeddah City.Clinical, cosmetic and investigational dentistry · 2022Article
- Minimally Invasive Therapies for the Management of Dental Caries-A Literature Review.Dentistry journal · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Despite the high success rates of preformed metal crowns (PMCs) in children no randomized clinical trials compare methods of placement and none describe its use in Africa. Our aim was to compare survival and cost-effectiveness of PMCs placed by conventional techniques (CT) and biological Hall techniques (HT) using a prospective randomized control trial in a general dental practice from Khartoum. One hundred and nine and 103 PMCs were placed in randomly selected children (5-8years) with 1-2 carious primary molars using HT and CT respectively and followed for 2 years. Socioeconomic status, periodontal health, occlusion, anxiety, and procedure time were compared using student t-test. Kaplan-Meier survival rates and incremental cost effectiveness ratio (ICER) were compared between CT and HT. CT and HT groups were similar for age, gender, socio-economic status. Survival rates were high (over 90%) for both study arms and not statistically different (p>0.05). Anxiety scores were significantly higher in CT arm after 12 months compared to HT (p<0.001). Clinically, gingival and plaque indices were similar between groups (p>0.05) but occlusions were raised in nearly all subjects in the HT arm (p<0.05). Periodontal health improved, and occlusions adjusted over time in both arms. There were 3 (2.7%) and 6 (5.8%) minor failures, 7 (6.4%) and 6 (5.8%) major failures in HT and CT arms respectively. Mean procedure time was lower in HT (9.1 min) than CT (33.9 min); p<0.001. Mean PMC cost was US$2.45 and US$7.81 for HT and CT respectively. The ICER was US$136.56 more for each PMC placed by CT per life year. We show that PMCs have high survival outcomes in disadvantaged populations similar to results from developed countries. As HT can be carried out by less experienced dental operators and therapists, this biological approach provides a promising cost-effective option to manage caries in developing countries with limited resources. Trial registration: The trial is registered at clinicaltrials.gov. ClinicalTrial.gov Trial Registration: NCT03640013.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.