Class V carious lesions will be restored using either Resin modified glass ionomer or Giomer based injectable resin composite.The restorations will be evaluated at baseline and regular recalls of 3 months, 6 months, 12 months and 18 months, using modified United States Public Health Service criteria.

In this study, Class V carious lesions will be restored using two different restorative materials either Resin modified glass ionomer or Giomer based injectable resin composite. Patients will be assessed for medical and dental histories first. Then an examination of the patients will be done using visual inspection by using a dental mirror and probe. Eligible patients according to inclusion and exclusion criteria will be informed about all procedures with follow up time if they accept. Their signature on written informed consents will be obtained. Eligible participants will be randomly divided into two groups according to the type of restoration they will be received.The first group (A) (Intervention): Giomer based injectable resin composite (Beautifil Flow plus X F03, SHOFU, USA): The material will be applied according to manufacturer instructions. The second group (B) (comparator): Resin modified glass ionomer (Fuji II LC, GC): The material will be applied according to manufacturer instructions.The restorations will be evaluated at baseline and regular recalls of 3 months, 6 months, 12 months and 18 months, using modified United States Public Health Service criteria (USPHS) for the following characteristics: retention, anatomical form, marginal adaptation, marginal staining, surface texture, and secondary caries . The restorations will be evaluated with the aid of a dental explorer and an intraoral mirror and visual inspection. The restorations will be scored as follows: Alfa represents the ideal clinical situation, Bravo will be clinically acceptable, and Charlie represents a clinically unacceptable situation.

Participant Inclusion Criteria

• Age 18-60 years.
• Co-operative patients approving to participate in the study.
• Male or female patients.
• Patients with good general health
• Moderate or high caries risk patient

Teeth Inclusion Criteria

• Cervical Class V carious lesions.
• Pulp asymptomatic vital carious teeth.

Participant Exclusion Criteria

• Systemic disease or severe medical complications.
• Participants with a history of allergy to any component of restorations will be used in the study.
• Lack of compliance
• Evidence of severe bruxism, clenching, or temporomandibular joint disorders or bizarre habits

Teeth Exclusion Criteria

• Presence of apical or periapical pathosis.
• tooth mobility
• Non-vital teeth.
• Teeth with advanced periodontal diseases.
• Teeth which need indirect restoration.

Expecting to have all the data by October 2024