Objective This article describes the use of flowable injectable composite resins to facilitate transitional treatment of a complex complete mouth rehabilitation. Clinical Considerations Some patients require urgent and complex complete mouth rehabilitations that are time and cost intensive. Financial considerations can prevent some patients from pursuing treatment. This can result in the oral conditions worsening over time and compromising the long‐term prognosis of the teeth. Conclusions Injectable composite resins can be used as a transitional bonding material for complex cases using an injection molding technique utilizing clear indices obtained from a diagnostic waxing. This allows for a full mouth rehabilitation to be performed in a single appointment, producing instant results. Clinical Significance Transitioning with injectable composite as demonstrated in this case will immediately stabilize an otherwise deteriorating situation in a cost‐effective way and allows patients to address the realities of financial or time constraints when transitioning to more durable porcelain restorations over a period of years.