Infraoccluded first permanent molars and their association with facial and skeletal development.

Introduction: Permanent molar infraocclusion, usually caused by ankylosis, has been scarcely studied. Unilateral first molar infraocclusion (UFMI) restricts alveolar bone development locally, leading to asymmetrical dental arches and occlusion. This study investigates whether its effect extends beyond dental structures to affect facial and skeletal asymmetries.