ObjectiveEsthetic management of enamel opacities related to molar‐incisor hypomineralization is recognized as an unpredictable procedure when resin infiltration is used. The use of transillumination during this procedure may increase its predictability. The aim of this paper is to describe a new transillumination‐based concept for treating enamel opacities with resin infiltration.Clinical considerationsThis report describes a case of enamel opacities affecting the maxillary central incisors related to molar‐incisor hypomineralization where transillumination‐aided infiltration was used for treating these lesions. Pre‐operatively, the lesion depth is assessed using transillumination, which shows the presence of enamel surface layer covering the lesion. The mandatory removal of this layer is also monitored using transillumination as the lesion is progressively exposed and brought into the surface. Then, the classic protocol of resin infiltration is followed. Transmitted light was also efficient in monitoring the progression of resin‐infiltration.ConclusionThe appearance of the lesions' edges in transillumination was the main clue in indicating their depth and eventually their exposure into the surface. Transillumination was also reliable in monitoring the progression of the infiltration until complete saturation of the porous enamel.Clinical significanceThe use of the proposed concept may help the dental practitioner in obtaining predictable results when enamel opacities related to molar‐incisor hypomineralization are treated with resin infiltration. Besides, transillumination can be used as a diagnostic tool during the lesion transformation as well as its infiltration.

Stained enamel opacities are frequently encountered in dental practice. However, due to the risk of unaesthetic outcome, managing such lesions by resin infiltration techniques alone is not advised. Therefore, performing external bleaching before resin infiltration procedure is mandatory to eliminate stains from the hypomineralized lesions in order to aesthetically infiltrate them. In this work, we describe clinical cases in which external bleaching and resin infiltration techniques were used for managing stained enamel hypomineralized lesions related to traumatic dental injuries and molar incisor hypomineralization. Despite the fact that this approach has some limitations, it could be concluded that external bleaching associated with the resin infiltration technique shows promising results to aesthetically manage stained enamel opacities when the stain is totally removed after bleaching.

According to the American Association of Endodontists, “a ‘true' vertical root fracture is defined as a complete or incomplete fracture initiated from the root at any level, usually directed buccolingually.” Vertical root fracture (VRF) usually starts from an internal dentinal crack and develops over time, due to masticatory forces and occlusal loads. When they occur in teeth, those types of fractures can present difficulties in diagnosis, and there are however many clinic and radiographical signs which can guide clinicians to the existence of the fracture. Prognosis, most often, is hopeless, and differential diagnosis from other etiologies may be difficult sometimes. In this paper, we present a case of VRF diagnosed after surgical exploration; the enlarged fracture line was filled with a fluid resin. A 36-month clinical and radiological follow-up showed an asymptomatic tooth, reduction of the periodontal probing depth from 7 mm prior to treatment to 4 mm with no signs of ankylosis. In this work, the diagnosis and treatment alternatives of vertical root fracture were discussed through the presented clinical case.

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