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In this paper, we propose BEHA\u2010Net, a Bilateral Edge\u2010Augmented Recurrent Horizontal Feature\u2010Shift Aggregation Network for joint tooth instance segmentation and F\u00e9d\u00e9ration Dentaire Internationale (FDI)\u2010compliant tooth numbering. BEHA\u2010Net integrates two key components: (1) a recurrent horizontal feature\u2010shift aggregation (HFA) module that captures cross\u2010tooth contextual correlations via leveraging the horizontal arrangement topology of dental arches and aggregating multi\u2010scale dependencies across adjacent and non\u2010adjacent teeth; and (2) a bilateral edge\u2010augmented (BEA) module that refines boundary representations by edge detail enhancement and noise suppression. Extensive experiments on the Tufts and O\n                    <jats:sup>2<\/jats:sup>\n                    PR benchmarks demonstrate the superiority of our method over existing approaches.\n                  <\/jats:p>","DOI":"10.1111\/exsy.70248","type":"journal-article","created":{"date-parts":[[2026,3,19]],"date-time":"2026-03-19T10:33:37Z","timestamp":1773916417000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Bilateral Edge\u2010Augmented Recurrent Horizontal Feature\u2010Shift Aggregation Network for Tooth Instance Segmentation With\n                    <scp>FDI<\/scp>\n                    \u2010Based Numbering"],"prefix":"10.1111","volume":"43","author":[{"given":"Yuzhou","family":"Yu","sequence":"first","affiliation":[{"name":"University of Science and Technology of China  Hefei China"},{"name":"Hefei Cancer Hospital of CAS, Institute of Health and Medical Technology Hefei Institutes of Physical Science, Chinese Academy of Sciences  Hefei China"},{"name":"Anhui Province Key Laboratory of Medical Physics and Technology  Hefei China"}]},{"given":"Jinyue","family":"Li","sequence":"additional","affiliation":[{"name":"University of Science and Technology of China  Hefei China"},{"name":"Hefei Cancer Hospital of CAS, Institute of Health and Medical Technology Hefei Institutes of Physical Science, Chinese Academy of Sciences  Hefei China"},{"name":"Anhui Province Key Laboratory of Medical Physics and Technology  Hefei China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0706-4782","authenticated-orcid":false,"given":"Dianlong","family":"Ge","sequence":"additional","affiliation":[{"name":"Hefei Cancer Hospital of CAS, Institute of Health and Medical Technology Hefei Institutes of Physical Science, Chinese Academy of Sciences  Hefei China"},{"name":"Anhui Province Key Laboratory of Medical Physics and Technology  Hefei China"}]},{"given":"Ge","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery The First Affiliated Hospital of Anhui Medical University  Hefei China"}]},{"given":"Liangxin","family":"Yang","sequence":"additional","affiliation":[{"name":"Hefei Stomatological Hospital  Hefei China"}]},{"given":"Linger","family":"Yang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Oral Diseases Research of Anhui Province, College &amp; Hospital of Stomatology Anhui Medical University  Hefei China"}]},{"given":"Linfei","family":"Feng","sequence":"additional","affiliation":[{"name":"University of Science and Technology of China  Hefei China"},{"name":"Department of Oral and Maxillofacial Surgery The First Affiliated Hospital of Anhui Medical University  Hefei China"}]},{"given":"Yannan","family":"Chu","sequence":"additional","affiliation":[{"name":"Hefei Cancer Hospital of CAS, Institute of Health and Medical Technology Hefei Institutes of Physical Science, Chinese Academy of Sciences  Hefei China"},{"name":"Anhui Province Key Laboratory of Medical Physics and Technology  Hefei China"}]}],"member":"311","published-online":{"date-parts":[[2026,3,19]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"crossref","unstructured":"Almalki A. andL. 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