Maximum Biting Force of Inject Able Thermoplastic Resin Versus Conventional Resin in Complete Denture Patients

July 18, 2017 updated by: Ahmed saad eid, Cairo University

Maximum Biting Force of Injectable Thermoplastic Resin Versus Conventional Resin in Complete Denture Patients (A Randomized Clinical Trial)

In this research we are comparing the new thermoplastic material side by side with the conventional poly methyl methacrylate for fully edentulous patients measuring their maximum biting force whether it is going to be higher by the new polyamide material.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

For all included patients and in the first visit, panoramic x ray is taken then a primary impression will be made for the maxillary and mandibular arches using irreversible hydrocolloid material. Then, the maxillary and mandibular impressions will be poured with a hard stone to get a study casts.

A double layer wax spaced self-cured acrylic resin will be used to prepare a special tray for each patient. The special tray using also irreversible hydrocolloid material makes a secondary impression. The secondary impressions will be poured using extra hard dental stone to get the master casts.

At this point the patient is given a number to enter one of the two groups either the intervention group or the control group.

For the intervention group, the framework of the thermoplastic resin is usually thicker than that of the metal. At this time the framework wax pattern will be ready for spruing and flasking using specially designed flasks. The injection of the thermoplastic resin will be started after the elimination of wax and the procedure will be done using thermopress machine.

In the third visit for all patients, the finished denture bases of thermoplastic resin will be tried inside the patient's mouth to check its fitting, retention, reciprocation and opposing occlusion.

Then, a face bow record will be taken for each patient which will be used to mount the maxillary cast on the articulator. For mounting the mandibular cast, either an intercuspal or centric jaw relation will be used. Artificial teeth will be set up and tried in in the patient's mouth in the fourth visit to check esthetics, phonetics, lip support, occlusion and uneven pairing.

In The fifth visit, the finished prosthesis will be adjusted and delivered to each patient, the outcome data will be collected using a questionnaire, and a salivary swap is taken for microbial count detection.

Complete dentures will be constructed for all patients; Group- I: patients will receive complete dentures from thermoplastic material Group- II: patients will receive complete dentures from conventional Poly methyl Methacrelate resin.

Then use Gnatho-dynamometer for measure the biting force for all patients

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
21

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • - Completely edentulous
  • No bone irregularities
  • Good oral hygiene
  • Should be co-operative
  • Medically free
  • No TMJ Problems

Exclusion Criteria:

  • - Bone irregularities , soft tissue ulcerations , severe undercuts
  • Serious systemic problem
  • Patient with xerostomia
  • Severely resorbed ridge

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Thermoplastic resin group
Thermoplastic complete denture placement is done
Device: thermoplastic complete denture
a device used ti substitute teeth for edentlous patient made of thermoplastic resin
Placebo Comparator: conventional acrylic resin group
conventional acrylic resin complete denture placement is done
Device: conventional acrylic resin complete denture
A device used to substitute the teeth for edentlous patient made of acrylic resin

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
maximum biting force
Time Frame: 0,2,4,6 months
using gnathodynamometer to compare the difference between maximum biting force
0,2,4,6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Cairo University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

  • 1. Brunello DL, Mandikos MN (1998) Construction faults, age, gender, and relative medical health: factors associated with complaints in complete denture patients. J Prosthet Dent 79, 545-554. 2. Craig RG, Powers JM, et al. Restorative Dental Materials. 11th ed. St Louis: Mo, Mosby; 2002. pp. 636-689. 3. O Bricn WJ. Dental Material and their selection. 4th ed. Chicago: Quintessence Publishing Co, Inc.; 2008. pp. 75-113. 4. Marei MK. Reinforcement of denture base resin with glass fillers. J Prosthodont. 1999; 8: 18-26. 5. Vojdani M, Khaledi AAR. Transverse Strength of Reinforced Denture Base Resin with Metal Wire and E-Glass Fibers. J Dent Tehran Univ Med Scien. 2006; 3: 167-172. 6. Vojdani M, Bagheri R, Khaledi AAR. Effects of aluminum oxide addition on the flexural strength, surface hardness, and roughness of heat-polymerized acrylic resin. Journal of Dental Sciences. 2012; 7: 238-244. 7. Matthews E, Smith DC. Nylon as a denture base material. Br Dent J. 1955; 98: 231-237. 8. Negrutiu Meda et al (2005) Thermoplastic resins for flexible framework removable partial dentures. TMJ 55:3 9. Hazari, P., Bhoyar, A., Mishra, S. K., Yadav, N. S., & Mahajan, H. (2015). A Comparison of Masticatory Performance and Efficiency of Complete Dentures Made with High Impact and Flexible Resins: A Pilot Study. Journal of Clinical and Diagnostic Research : JCDR, 9(6), ZC29-34. doi:10.7860/JCDR/2015/12207.6089 10. Rueggeberg FA. From Vulcanite to vinyl, a history of resins in restorative dentistry, J Prosthet Dent. 2002; 87(4):364-79.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2017

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 1, 2017

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 16, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 16, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 18, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 19, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 18, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2017

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 28711170100211

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

data will be available through contact by email of the princible investigator ( ahmed_saad@dentistry.cu.ed.eg)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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