Abstract Craniosynostosis surgery may result in temporal hollowing occasionally. Overexpansion of the normal side and undergrowth of the affected side exacerbate the problem in unilateral cases (like unicoronal synostosis). Temporalis muscle lies in the temporal fossa, and it is usually severed or detached from its origin in order to reach the lateral aspect of the fronto-orbital bar. Reattachment of the temporalis muscle is challenging especially when the orbital bar is moved forward. In this technical note, exposure of the lateral cranial vault with zigzag incision of the temporalis muscle in 35 nonsyndromic anterior plagiocephaly patients has been described in detail, and the ease of reattachment is demonstrated afterward.