| Source of record | UK Trials |
| ISRCTN | ISRCTN45965219 |
| Date ISRCTN assigned | 12/09/2003 |
| Local reference number(s) | N0188119744 |
| Public title | The influence of clasp design on twin block appliances outcome - a prospective randomised, controlled clinical trial |
| Scientific title |
|
| Acronym | N/A |
| Disease/condition/study domain | Oral Health: Orthodontics |
| Study hypothesis | To discover if incorporating a Southend Clasp on the upper central incisors in the design of the Twin Block Appliance will eliminate or greatly reduce incisor retraction thereby enhancing mandibular advancement. |
| Design/methodology | Randomised controlled trial |
| Research ethics review | Not provided at time of registration |
| Countries of trial | United Kingdom |
| Participants - inclusion criteria | Patients aged 11-15 years |
| Participants - exclusion criteria | Not provided at time of registration |
| Patient information material |
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| Anticipated start date | 01/01/2003 |
| Anticipated end date | 01/04/2007 |
| Status of trial | Completed |
| Target number of participants | 102 |
| Interventions | Random allocation of two alternative designs of twin block appliance, one with a Southend clasp on the upper central incisors and one without. The appliances are identical in all other aspects. |
| Primary outcome measure(s) | Not provided at time of registration |
| Secondary outcome measure(s) | Not provided at time of registration |
| Sources of funding | Lancashire Teaching Hospitals NHS Trust (UK) |
| Sponsor name | Record provided by the NHS Trusts Clinical Trials Register - Department of Health (UK) |
| Sponsor details | The Department of Health
Richmond House
79 Whitehall
London
United Kingdom
SW1A 2NL |
| Sponsor telephone | +44 (0)20 7307 2622 |
| Sponsor fax | +44 (0)20 7307 2623 |
| Sponsor email | dhmail@doh.gsi.org.uk |
| Sponsor website | http://www.doh.gov.uk |
| Contact name | Dr MJ Trenouth |
| Contact details | Consultant Orthodontist
Royal Preston Hospital
Sharoe Green Lane North
Fulwood
Preston
United Kingdom
PR2 9HT |
| Contact telephone | +44 01772 716565 |
| Contact fax | +44 |
| Contact email | michael.trenouth@lthtr.nhs.uk |
| More information | For more up-to-date information please go to the ISRCTN link below. |
| Link to record in ISRCTN Register | ISRCTN45965219 |
| Date last extracted from ISRCTN register | 17/04/2008 |
