A randomised controlled trial in primary care of a novel method of using preformed metal crowns to manage decay in primary molar teeth: the Hall technique

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN47267892

Enrollment

120

Registered

2007-07-05

Start date

2001-07-01

Completion date

Unknown

Last updated

2015-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dental decay Oral Health Decay

Interventions

A preformed metal (stainless steel) crown will be placed on one of the pairs of carious primary molar teeth of the child. The other molar tooth will be given a standard treatment.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Children aged 4 to 9 years of age with pairs of carious primary molar teeth, matched for arch, tooth type and extent of caries.

Exclusion criteria

Exclusion criteria: Medical contra-indications, i.e., children at risk of infective endocarditis.

Design outcomes

Primary

Measure	Time frame
The following outcomes will be assessed at least 23 months after the placement of the crown: 1. Absence of signs/symptoms of pulpal pathology 2. Resoration failure requiring intervention	—

Secondary

Measure	Time frame
1. Acceptability of the intervention technique 2. Cost effectiveness	—

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Apr 6, 2026