Hall Technique vs Conventional Technique in Permanent Teeth

Comparison of Hall Technique vs Conventional Technique in Permanent Teeth

The purpose of this study is to evaluate and compare the clinical and radiological performance of stainless steel crowns using conventional and Hall technique on permanent molars

Study Overview

• Status: Not yet recruiting
• Conditions: Dental Caries; Crowned Posterior Teeth
• Intervention / Treatment: Other: SSC crown with Hall technique; Other: SSC with conventional technique

Detailed Description

Stainless Steel Crowns will be applied on two permanent molar teeth in a split mouth design. 96 patients will be included in the study. The teeth will be randomized into two groups according to the applying methods: 1) Traditional method 2) Hall technique.

Oral hygiene index (Green & Vermillion), Plaque index (Sillness & Löe), gingival health (Löe & Sillness), level of gingival margin, crown retention and success, wear, occlusion, clinical pulpal health (spontaneous pain, mucosal swelling/fistula presence, mobility, percussion/palpation tenderness) and radiographic pulpal health (periradicular/interradicular radiolucency, lamina dura loss, internal/external root resorption, pulp canal obliteration) will be evaluated and photographic records will be taken.

The evaluation of the restorations will be performed at baseline, and 1., 3., 6., 12., 18., 24. months. The measurement of vertical hight on occlusion will be performed before and immediate after the treatment, at 2 weeks and 1., 2. and 3.months.

Fisher's Exact test, Kaplan-Meier Survival Curves, Log-rank test, Mann Whitney U test, and Friedman test will be performed for the statistical analysis.

• Study Type: Interventional
• Enrollment (Estimated): 96
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: gizem erbas unverdi, Dr.; Phone Number: 00905052805736; Email: erbasgizem@gmail.com
• Study Contact Backup: Name: sule sahin, research assistant; Email: sahinsule02@gmail.com

Study Locations

• Turkey
  • Altindag
    • Ankara, Altindag, Turkey, 06100
      • Hacettepe university, pediatric dentistry
      • Contact: gizem erbas unverdi, assoc.prof.; Email: erbasgizem@gmail.com
      • Contact: sule sahin
      • Sub-Investigator: sule sahin
      • Principal Investigator: gizem erbas unverdi, assoc.prof.

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

1. The child volunteers and their parents who read and agreed to the informed consent form.
2. The presence of excessive loss of material or extensive enamel defects in at least two permanent molars that require crown application.
3. The presence of antagonist teeth of the teeth to be crowned.
4. All treatments on the patient's other teeth have been completed.
5. The patient who does not have temporomandibular joint (TMJ) problems.
6. Children who have cooperation to allow the dental procedure to be completed.

Exclusion Criteria:

1. Child volunteers or parents who refuse to participate in the study.
2. The patient who has a chronic disease.
3. Patients undergoing orthodontic treatment
4. The patient has missing teeth on the treated side.
5. The need for vital or non-vital pulp treatment of the tooth.
6. The child volunteers and their parents did not accept the aesthetic appearance of the stainless steel crown.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: SSC crown with conventional technique; SSC crown placement using conventional technique	Other: SSC crown with Hall technique; SSC crown placement using Hall technique
Experimental: SSC crown with Hall technique; SSC crown placement using Hall technique	Other: SSC with conventional technique; SSC placement using conventional technique

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Clinical and radiological performance of SSCs placed with Hall of conventional technique	The primary outcome 'success' was defined as the "absence of major failure," a measure encompassing clinical and radiographic signs of irreversible pulpitis or infectious complications (spontaneous pain, pulp infection, or periradicular pathology, loss of lamina dura on radiographs).	2 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Clinical measurements of SSCs placed with Hall of conventional technique	Plaque index (Sillness & Löe index), gingival health (Löe & Sillness index) scores will be measured.; Treatment longevity, will be measured as the time interval between the groups and the final follow-up date.; Retention of the SSC, defined as the presence or absence of SSC.; Normalisation time of the vertical height of the occlusion in Hall technique group.	2 years

Collaborators and Investigators

• Sponsor: Hacettepe University
• Investigators: Study Chair: zafer cavit cehreli, prof.dr.

Study record dates

Study Major Dates

• Study Start (Estimated): September 7, 2025
• Primary Completion (Estimated): December 30, 2027
• Study Completion (Estimated): June 30, 2028

Study Registration Dates

• First Submitted: June 25, 2025
• First Submitted That Met QC Criteria: July 28, 2025
• First Posted (Actual): August 1, 2025

Study Record Updates

• Last Update Posted (Actual): August 1, 2025
• Last Update Submitted That Met QC Criteria: July 28, 2025
• Last Verified: July 1, 2025

More Information

Terms related to this study

• Keywords: hall technique; crown; permanent teeth
• Additional Relevant MeSH Terms: Stomatognathic Diseases; Tooth Diseases; Tooth Demineralization; Dental Caries
• Other Study ID Numbers: Hall technique-permanent

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: IPD is available from the corresponding author on reasonable request
• IPD Sharing Time Frame: Starting 6 months after publication
• IPD Sharing Access Criteria: IPD is available from the corresponding author on reasonable request.
• IPD Sharing Supporting Information Type: STUDY_PROTOCOL; SAP; ICF

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No