The mixed dentition is often accompanied by transient malocclusions, such as a midline diastema. The general principle is to monitor development to ascertain the appropriate timing of possible intervention. The present clinical article reports the case of a seven-year-old boy who suffered from severe iatrogenic periodontitis of the maxillary incisors due to direct closure of a diastema by a rubber band. The incisors survived and exhibited periodontal and pulpal health at an eight-year review. Carefully-sequenced interdisciplinary management and co-operation, appropriate biomechanics aided by temporary anchorage devices, and a longterm follow-up are noted as key factors determining success when clinicians encounter such challenges.
© 2021 Yan Gu, Chunyang Zhao, Bin Yan, Yan Zhang, Ke Liu, Lin Wang, published by Australian Society of Orthodontists Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.