Evaluation of Candida Albicans Growth on BreFlex Versus PEEK Denture Base in Maxillary Bounded Partial Denture

March 6, 2018 updated by: Ahmed Sammy Mansour, Cairo University

Evaluation of Candida Albicans Growth on Bre.Flex Versus PEEK ( Polyether Ether Ketone ) Denture Base in Bilateral Maxillary Bounded Partial Denture (Randomized Clinical Trial)

This study evaluate Candida Albicans growth on Bre-Flex versus PEEK denture base in Bilateral Maxillary bounded partial denture , half of patients will receive a framework with breflex denture base and the other half will receive a framework with PEEK denture base then evaluate the Candida growth

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Peek and Bre.flex are both new material that introduced to the market recently with great benefits like aesthetics and bio-compatibility but which material has less candida growth ? Bre.flex is a nylon-based thermoplastic material, composed of nylon polyamide 12 (polyamide).Nylon exhibits high physical strength, heat resistance and chemical resistance. It can be easily modified to increase stiffness and wear resistance. Nylon resin can be semi-translucent and provides excellent esthetics but it is a little more difficult to adjust and polish.

Despite of its highly esthetics features, Nylon still suffers from surface roughness that increase the colonization for candida but less than heat cured acrylic Recently, PEEK is introduced as a removable prosthesis material due to its high mechanical and biological properties but further clinical studies or systematic reviews focusing on the use of PEEK dentures are needed.

The patient will be treated in visits designated as follows:

Visit 1: Preoperative records, clinical, radiographic examination (panoramic and periapical x-rays for evaluation the crown-root ratio, the apical condition of the abutment and their alveolar bone support of abutment) and primary impression will be performed with irreversible hydro-colloid impression material (alginate), The impressions will be poured with type IV dental stone to obtain diagnostic casts.

Visit 2: Maxillary Face-bow will be recorded. The diagnostic casts will be mounted on semi adjustable articulator in centric occluding relation to evaluate the inter arch distance and occlusal plane.

Visit 3: primary surveying is performed. Special trays will be constructed and Mouth preparation will be performed by preparing guiding planes and rests seats on the abutments. Final impression will be taken by elastomeric impression material. The impression will be poured into type IV dental stone in order to obtain master cast. The master cast will be surveyed. The proposed design will be as follows: framework for edentulous areas on both sides connected with palatal strap. Aker's clasp on all abutments with buccal retention.

Visit 4: the metal framework is tried into the patient's mouth. Jaw relation is recorded.

Visit 5: The framework will be tried in with acrylic teeth in patient's mouth. Visit 6: the denture base of the partial denture will be processed incorporation with the metal framework into the two different materials to be evaluated. The first group will receive the partial denture in which the metal framework incorporated with the denture base fabricated from PEEK material. The second group will receive the partial denture in which the metal framework incorporated with the denture base material fabricated from BRE-FLEX.

Visit7, 8, 9: clinical measurement will be performed for one month in three visits.

Study Type

Interventional

Enrollment (Anticipated)

18

Phase

  • 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.

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

Ages Eligible for Study

35 years to 55 years (ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • All patients must have Kennedy class III modification I upper partially edentulous ridges.
  • The remaining teeth have good periodontal condition, with no signs of attrition or gingival recession.
  • Male or female patient with age range (30-55) and in good medical condition
  • All patients have skeletal Angle's class I maxillo-mandibular relationship and have sufficient interarch distance.
  • Free from any systemic or neuromuscular disorder that might affect chewing efficiency of masticatory muscles.
  • Free from any tempo-mandibular joint disorder.
  • The patients have good oral hygiene and low caries index.

Exclusion Criteria:

  • Patients having abnormal habits as bruxism or clenching
  • Patients having hormonal disorders as diabetes, thyroid or parathyroid hormonal diseases were not included.
  • Teeth with compromised bone support.
  • Patient with xerostomia or excessive salivation.
  • Patient with abnormal tongue behavior and/or size.

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: OTHER
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: TRIPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Group 1
patients will receive partial denture constructed from PEEK material
Other: PEEK
PEEK has been successfully used over the last years in the medical field, and orthopedics, specifically. which presents high bio compatibility, good mechanical properties, high temperature resistance, and chemical stability due to a 4 GPa modulus of elasticity, it is as elastic as bone and can reduce stresses transferred to the abutment teeth.Additional advantages of this polymer material are elimination of allergic reactions and metallic taste, high polishing qualities, low plaque affinity, and good wear resistance, it has only recently been used in dentistry.
ACTIVE_COMPARATOR: Group 2
patients will receive partial denture constructed from breflex material
Other: Bre-Flex

In the recent time thermoplastic materials become quite popular in clinical practice such as nylon and acetal resins. since the 1950, poly-amide resin (nylons) provide improved esthetics and reduction of rotational forces on the abutment teeth due to their low elastic modulus(3).

The major disadvantage of a nylon removable denture is the inability for a reline procedure and the lack of occlusal rests as well as rigid frameworks, that could lead to occlusal instability and sinking, especially in Kennedy class I and II cases. On the other hand, acetal resins present adequate mechanical strength to form a frame-work more rigid than nylon with retentive clasps, connectors, and supportive elements; however, the acetal resin material lacks natural translucency and vitality.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Candida Albicans growth
Time Frame: one month
after insertion of the denture we will measure the Candida count using Light Microscope and record the CFU/ML (colony-forming units per milliliter) unit
one month

Collaborators and Investigators

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

Sponsor

Cairo University

Investigators

  • Study Director: Nadia Abbas, MD, 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

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)

June 28, 2018

Primary Completion (ANTICIPATED)

July 22, 2018

Study Completion (ANTICIPATED)

August 1, 2018

Study Registration Dates

First Submitted

February 22, 2018

First Submitted That Met QC Criteria

March 6, 2018

First Posted (ACTUAL)

March 13, 2018

Study Record Updates

Last Update Posted (ACTUAL)

March 13, 2018

Last Update Submitted That Met QC Criteria

March 6, 2018

Last Verified

March 1, 2018

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • Peek vs Breflex

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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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