An interventional study of Class V Restoration - Polofil and Class V Restoration - Stela in Carious Cervical Lesions, sponsored by Cairo University. Not yet recruiting at 1 site in Egypt. Open to participants aged 21 Years to 45 Years. Per ClinicalTrials.gov, last updated 2026-07-06.
Sponsored by Cairo University · Not applicable, Interventional, and Treatment
The aim of the study is to compare and evaluate the clinical performance of a self cure composite system versus a highly filled flowable composite in the restoration of carious cervical lesions over an 18 months follow up period.
Examination and selection of patients will be done according to the inclusion and exclusion criteria. A class V cavity will be prepared after local anesthesia has been given. Followed by the placement of the restorative material according to the randomization sequence.
For the intervention: the primer will be applied first followed by filling of the cavity using self cure composite (Stella Automix or Stela Capsule, SDI Ltd, Australia). For the control group: etching of the cavity (Kulzer Gluma Etch, Kulzer GmbH, Germany) will be done followed by rinsing, drying, applying the bonding agent (Solobond M, Voco GmbH, Germany), curing, and lastly, applying the highly filled flowable composite (Polofil NHT flow, Voco Gmbh, Germany) and curing.
Cairo University is the lead sponsor of 4,780 studies on the registry; 1,427 are open to participants now.
Of its 36 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.
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Patient-related Criteria:
A) Inclusion Criteria:
B) Exclusion Criteria:
Tooth-related Criteria:
A) Inclusion Criteria:
B) Exclusion Criteria:
Procedure: Class V Restoration - Stela
Procedure: Class V Restoration - Polofil
A class V cavity with 1 mm occlusal bevel will be prepared after administering local anesthesia. Rubber dam isolation will be done, , etching of the enamel (20-30 seconds) and dentin (15 seconds) using a 35% phosphoric acid etch (Kulzer Gluma Etch, Kulzer GmbH, Germany), then rinsing for 20 seconds followed by controlled drying of the cavity till it's slightly moist. Application of the bonding agent (Solobond M, Voco GmbH, Germany) using a disposable brush and leaving it to act for 30 seconds then an air jet will be used to disperse the bonding agent. Curing for 20 seconds will be done using a LED light curing unit with curing intensity 1200-3000 mw/cm2 (CuringPen-E, Changzhou Sifary Medical Technology Co., Ltd, China). Flowable composite (Polofil NHT flow, Voco GmbH, Germany) will be placed, adapted by gold plated applicator then light polymerized for 20 seconds using light emitting diode (LED) light curing unit.
A class V cavity with 1 mm occlusal bevel will be prepared after administrating local anesthesia followed by rubber dam isolation. Stela Primer (SDI Limited, Australia.) will be applied for 5 seconds on the cavity and the margins, then it will be gently dried with air for 2-3 seconds without light curing. The self-cure bulk fill resin composite (Stela Automix or Stela Capsule, SDI Limited, Australia) will be applied then sculpted using a gold-plated composite applicator (Lascod, Italy). Full polymerization will take place after 4 minutes.
Retention
The restoration will be clinically assessed according to the modified USPHS criteria. Restoration will be given Alpha score when there is no loss of restoration. It will be given a Charlie score when there is loss of restoration and need for replacement.
Time frame: 18 Months
Marginal Adaptation
The restoration will be clinically assessed according to the modified USPHS criteria. It will be give an Alpha score when the restoration is closely adapted with no detectable margin. It will be given a Bravo score when there is a detectable marginal discrepancy, but it still clinically acceptable. It will be given a Charlie score when there is a marginal crevice that is clinically unacceptable.
Time frame: 18 months
Marginal Discoloration
The restoration will be clinically assessed according to the modified USPHS criteria. It will be given an Alpha score when there is no discoloration between the tooth and the restoration. It will be given a Bravo score when there is superficial discoloration which can be polished away. It will be give a Charlie score when the discoloration has penetrated beyond the margin in pulpal direction.
Time frame: 18 months
Post-operative Sensitivity
The restoration will be clinically assessed according to the modified USPHS criteria. It will be give an Alpha score when there is no post-operative sensitivity and a Charlie score when there is post-operative sensitivity.
Time frame: 18 months
Recurrent Caries
The restoration will be clinically assessed according to the modified USPHS criteria. It will be given an Alpha score when there is no detectable recurrent caries and a Charlie score when recurrent caries is detected.
Time frame: 18 months
Surface Roughness
The restoration will be clinically assessed according to the modified USPHS criteria. It will be given an Alpha score when there is no surface defect. It will be given a bravo score when there is minimal surface defect. It will be given a charlie score when there is a severe surface defect.
Time frame: 18 months
Color Match
The restoration will be clinically assessed according to the modified USPHS criteria. It will be given an Alpha score when the restoration matches the color of the tooth. It will be give a Bravo score when there is an acceptable mismatch. It will be given a Charlie score when there is an unacceptable mismatch.
Time frame: 18 months
Plan to share: Undecided
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Cairo University