Interproximal (IP) caries are cavities that develop in the tight spaces between teeth. These areas can be difficult to clean thoroughly with a toothbrush, thus increasing the risk of caries formation. Icon is a minimally invasive procedure used to treat early-stage of IP lesions, particularly those in the E1 and E2 stages. Icon can be utilized for lesions that have not yet formed cavities and have an intact surface layer. The treatment involves the use of a specific resin to penetrate the affected enamel and seal the lesion, preventing further damage. The aim of the present article is to showcase the importance of icon infiltration in the treatment of an early enamel lesion.
A young male presented for a routine examination, upon taking bite wing radiographs, a number of IP lesions were detected. The X-Ray revealed E1 lesions on LR5 (distal) and LR7 (mesial), and E2 lesions on LR6 (mesial and distal).
Occlusal view of the initial situation.
To ensure a proper moisture control during icon treatment, isolation is achieved by placing a rubber dam, and an icon wedge to separate the dentition.
E2 lesion on LR6.
Prior to treatment, the teeth were cleaned using an ultrasonic scaler and air-abraded with 29μm aluminium oxide using Aquacare.
After washing for 60 seconds and air drying.
Before curing, the resin was dried with air.
Floss was used to clean the area between the contacts.
Curing for at least 40 seconds with a good light curing is crucial.
Polishing strip in use.
The steps of Icon infiltrant application were repeated, ensuring to cure for another 40 seconds. Finally, excess resin was removed, and the tooth surface was polished using a combination of floss, polishing strips, and a Gracey scaler to achieve a smooth and polished tooth surface.
Post-op after infiltration. The lesion mark will disappear once the gap closes.
To prevent future cavities, patients should be reminded to maintain their regular oral hygiene. Regular check-ups are also essential to monitor the treated area with bite-wing radiographs and clinical examination. Icon proximal is an effective tool for managing early enamel lesions. Accurate diagnosis is critical, and patients should be monitored after treatment. This minimally invasive approach has huge advantages including painless dentistry without the requirement of local anaesthesia or drilling. The procedure is straightforward and easy to follow.
- Cebula M, Göstemeyer G, Krois J, Pitchika V, Paris S, Schwendicke F, Effenberger S. Resin Infiltration of Non-Cavitated Proximal Caries Lesions in Primary and Permanent Teeth: A Systematic Review and Scenario Analysis of Randomized Controlled Trials. Journal of Clinical Medicine. 2023 Jan 16;12(2):727.
- Elrashid AH, Alshaiji BS, Saleh SA, Zada KA, Baseer MA. Efficacy of resin infiltrate in noncavitated proximal carious lesions: a systematic review and meta-analysis. Journal of International Society of Preventive & Community Dentistry. 2019 May;9(3):211.