Skip to content

Color Stability and Tooth Sensitivity of CAD/CAM and Conventional Provisional Restorations

Clinical Color Stability and Tooth Sensitivity of CAD/CAM-Milled and Conventionally Fabricated Provisional Restorations: A Prospective Randomized Clinical Study

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07781241
Enrollment
45
Registered
2026-08-24
Start date
2023-01-03
Completion date
2023-06-10
Last updated
2026-08-24

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

Conditions

Provisional Dental Restorations

Keywords

CAD/CAM, CIEDE2000, Color Stability, Tooth Sensitivity, Provisional Restorations

Brief summary

This prospective randomized clinical study compared the color stability and postoperative tooth sensitivity of provisional restorations fabricated using two CAD/CAM-milled materials (VITA CAD-Temp and Telio CAD) and a conventionally fabricated bis-acryl composite resin (Protemp 4) in patients undergoing fixed prosthodontic treatment. Forty-five participants were randomly allocated in a 1:1:1 ratio to the three provisional restorative material groups, with one restoration evaluated per participant. Color was measured spectrophotometrically at baseline, 2 weeks, 1 month, 2 months, and 3 months, and color change was calculated using the CIEDE2000 formula. Tooth sensitivity was assessed using a 0-10 visual analog scale before treatment, immediately after placement of the provisional restoration, and at 2 weeks, 1 month, 2 months, and 3 months. The study aimed to determine whether these provisional restorative material-workflow combinations differed in longitudinal color stability and postoperative tooth sensitivity during the 3-month clinical follow-up.

Interventions

DEVICEMicrofilled Reinforced Polyacrylic Resin Provisional Restoration

A provisional fixed restoration was digitally designed and CAD/CAM-milled from a prefabricated VITA CAD-Temp microfilled reinforced polyacrylic resin block. The restoration was finished and polished according to the manufacturer's recommendations, clinically adjusted as needed, and cemented with Temp-Bond Clear temporary resin cement.

DEVICEPMMA Provisional Restoration

A provisional fixed restoration was digitally designed and CAD/CAM-milled from a prefabricated Telio CAD PMMA block. The restoration was finished and polished according to the manufacturer's recommendations, clinically adjusted as needed, and cemented with Temp-Bond Clear temporary resin cement.

DEVICEBis-Acryl Composite Resin Provisional Restoration

A provisional fixed restoration was conventionally fabricated using Protemp 4 bis-acryl composite resin with a silicone index. The restoration was finished and polished according to the manufacturer's recommendations, clinically adjusted as needed, and cemented with Temp-Bond Clear temporary resin cement.

Sponsors

University of Gaziantep
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Participants were randomly assigned in a 1:1:1 ratio to three parallel groups according to the provisional restorative material used: VITA CAD-Temp, Telio CAD, or Protemp 4.

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

Adults aged 18 to 70 years Requiring fixed prosthodontic treatment Presence of a vital tooth without previous endodontic treatment Good oral hygiene Non-smoker No uncontrolled parafunctional habits -

Exclusion criteria

High caries risk Generalized gingival inflammation Periodontitis Poor oral hygiene Severe spontaneous dental pain Pregnancy Oncologic disorders Psychiatric disorders \-

Design outcomes

Primary

MeasureTime frameDescription
Color Change of Provisional Restorations Measured by CIEDE2000 (ΔE00)Baseline to 2 weeks, 1 month, 2 months, and 3 monthsColor was measured using a VITA Easyshade spectrophotometer under standardized clinical conditions. Five consecutive measurements were obtained for each provisional restoration at each assessment, and the mean color coordinates were used. Color change relative to baseline was calculated using the CIEDE2000 color-difference formula (ΔE00). Higher ΔE00 values indicate greater color change.

Secondary

MeasureTime frameDescription
Tooth Sensitivity Measured by Visual Analog Scale (VAS)Before treatment, immediately after provisional restoration placement, 2 weeks, 1 month, 2 months, and 3 monthsTooth sensitivity was assessed using a 0-10 visual analog scale (VAS), where 0 indicated no pain and 10 indicated unbearable pain. A standardized air stimulus was applied to the treated tooth from approximately 1 cm for a maximum of 3 seconds, and participants rated the intensity of sensitivity immediately after stimulation. Higher VAS scores indicate greater tooth sensitivity.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 25, 2026