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Comparison of Post Cementation Sensitivity Between RMGIC and GIC as Luting Materials in a Randomized Clinical Trial

Comparison of Post Cementation Sensitivity Between Resin-Modified Glass Ionomer Cement and Conventional Glass Ionomer Cement as a Luting Material: A Randomized Clinical Trial

Status
Enrolling by invitation
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07102121
Acronym
RMGICvsGIC
Enrollment
496
Registered
2025-08-03
Start date
2025-01-25
Completion date
2025-09-03
Last updated
2025-09-09

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

Conditions

Dental Pain and Sensation Disorder, Dental Pulp Disease

Keywords

sensitivity, cementation, post cementation

Brief summary

This randomized controlled trial aims to compare post-cementation sensitivity between resin-modified glass ionomer cement (RMGIC) and conventional glass ionomer cement (GIC) as luting materials. Conducted at the Prosthodontics Department, Saidu College of Dentistry, Swat, the study will enroll 248 patients aged 15-70 with vital abutment teeth, randomly assigned to receive either RMGIC or GIC. Sensitivity will be assessed using a 10-point Visual Analog Scale (VAS), with scores above 1 considered indicative of post-operative sensitivity and further categorized for analysis. Strict inclusion/exclusion criteria and randomization will control bias and confounders. Data will be analyzed in SPSS 22 using t-tests and chi-square tests, with significance set at p≤0.05.

Detailed description

Dental prostheses are frequently used to replace missing teeth. Fixed partial dentures are regarded as the gold standard for restoring lost teeth, aiming to recover proper function, speech, and appearance. These fixed prostheses must be securely attached to the neighboring teeth using specific bonding agents known as luting cements. Ideal luting materials should exhibit low solubility, biocompatibility, resistance to leakage, and should not cause discomfort or sensitivity after cementation. Common luting agents include glass ionomer cement (GIC), resin-modified glass ionomer cement (RMGIC), zinc phosphate cement, and zinc oxide eugenol cement. Among these, GIC and RMGIC are considered reliable and long-lasting choices for luting purposes. This randomized controlled trial aims to compare post-cementation sensitivity between resin-modified glass ionomer cement (RMGIC) and conventional glass ionomer cement (GIC) as luting materials. Conducted at the Prosthodontics Department, Saidu College of Dentistry, Swat, the study will enroll 248 patients aged 15-70 with vital abutment teeth, randomly assigned to receive either RMGIC or GIC. Sensitivity will be assessed using a 10-point Visual Analog Scale (VAS), with scores above 1 considered indicative of post-operative sensitivity and further categorized for analysis. Strict inclusion/exclusion criteria and randomization will control bias and confounders. Data will be analyzed in SPSS 22 using t-tests and chi-square tests, with significance set at p≤0.05.

Interventions

PROCEDUREluting material applaication with Modified Glass Ionomer Cement (RMGIC)

The intervention involves the use of two different types of luting cements-resin-modified glass ionomer cement (RMGIC) and conventional glass ionomer cement (GIC)-for the cementation of fixed dental prostheses. The objective is to compare post-cementation sensitivity between the two materials. All clinical procedures, including tooth preparation, isolation, and cementation, will follow standardized protocols. Sensitivity will be measured using the Visual Analog Scale (VAS) at 24 hours and 7 days post-procedure. The study will maintain consistency across both groups, with the only variable being the type of cement used.

Sponsors

Saidu College of Dentistry
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)

Masking description

In this study, masking will be applied to the participants and the outcomes assessor to reduce performance and detection bias. Participants will not be informed about the type of luting cement used during their treatment. The outcomes assessor, responsible for evaluating post-cementation sensitivity, will also be blinded to group allocation to ensure unbiased data collection. However, due to the clinical differences in handling the materials, the care providers and investigators cannot be masked.

Intervention model description

This study follows a parallel assignment intervention model, where participants are randomly allocated into two groups in a 1:1 ratio. One group will receive resin-modified glass ionomer cement (RMGIC) and the other will receive conventional glass ionomer cement (GIC) for luting fixed dental prostheses. Each participant will undergo a standardized clinical procedure including tooth preparation, isolation, and cementation by trained postgraduate trainees. The intervention (type of cement) is applied once, and post-cementation sensitivity will be assessed at 24 hours and 7 days following the procedure. Randomization and stratification will be employed to reduce bias and ensure comparability between groups

Eligibility

Sex/Gender
ALL
Age
15 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

* Patients aged between 15 to 70 years Both male and female participants Abutment teeth with vital pulp Sound abutment teeth with no signs of attrition, erosion, or abrasion No history of pulp capping procedures on abutment teeth

Exclusion criteria

* Patients currently undergoing orthodontic treatment or who completed it within the last 3 months Use of bleaching or desensitizing agents History of recent periodontal surgery Patients on medications that affect pain perception (e.g., analgesics, carbamazepine) Patients with psychiatric conditions that may affect pain reporting or compliance

Design outcomes

Primary

MeasureTime frameDescription
Dentinal sensitivityAt 24 hours, one week, one month, 2 months and three months after cementationPatient-reported sensitivity will be assessed using a 10-point Visual Analog Scale (VAS), where 0 indicates no pain/sensitivity and 10 indicates the worst possible pain/sensitivity. A VAS score greater than 1 will be considered as post-cementation sensitivity. The scores will also be categorized as: No sensitivity: VAS 0-1 Mild: VAS 2-3 Moderate: VAS 4-7 Severe: VAS 8-10

Countries

Pakistan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 1, 2026