{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T05:03:53Z","timestamp":1784783033365,"version":"3.55.0"},"reference-count":27,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T00:00:00Z","timestamp":1784678400000},"content-version":"vor","delay-in-days":202,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Case Reports in Dentistry"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Deep periodontal defects (probing depths: 10\u201315\u2009mm) are traditionally considered hopeless and are frequently recommended for extraction. This report describes two patients demonstrating substantial periodontal tissue healing using a minimally invasive, nonsurgical approach combining piezoelectric instrumentation with Nd:YAG laser therapy, without bone grafts or biologic adjuncts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Two systemically healthy, nonsmoking adults with periodontally hopeless teeth underwent subgingival scaling with chlorhexidine irrigation, followed by Nd:YAG laser therapy. Case 1 received delayed laser therapy at 6 months; Case 2 received immediate combined therapy for an acute periodontal abscess. Teeth were stabilized by splinting. Clinical parameters, including probing depth, clinical attachment level (CAL), gingival recession, bleeding on probing, and gingival and plaque indices, were recorded at baseline and follow\u2010up. Periapical radiographs were qualitatively evaluated for bone density changes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Case 1 showed a 90.0% reduction in probing depth (10\u2009mm to 1\u2009mm) at 12 months, with a 9\u2010mm CAL gain (15\u2009mm to 6\u2009mm; 60.0% improvement) and stable recession. Case 2 demonstrated a 93.3% reduction at most sites (15\u2009mm to 1\u2009mm) by 4 months, with a 14\u2010mm CAL gain (20\u2009mm to 6\u2009mm; 70.0% improvement) and stable recession; however, one site retained a 4\u2010mm probing depth with a persistent vertical defect. Radiographs revealed increased bone density and re\u2010established trabecular patterns. No immediate postoperative pain or swelling was reported.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Combined piezoelectric and Nd:YAG laser therapy was associated with substantial clinical and radiographic improvement in periodontally hopeless teeth, suggesting a minimally invasive alternative to extraction in selected cases with severe attachment loss, when bacterial control and patient compliance are favorable.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1155\/crid\/6024213","type":"journal-article","created":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T04:49:27Z","timestamp":1784782167000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Combined Piezoelectric and Laser Therapy for Severely Compromised Teeth: Two Case Reports"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5724-1268","authenticated-orcid":false,"given":"Hyun Nyun","family":"Woo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-4639-0791","authenticated-orcid":false,"given":"Yong Tak","family":"Jeong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8362-8447","authenticated-orcid":false,"given":"Hyun Woo","family":"Cho","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0291-6114","authenticated-orcid":false,"given":"Jae Mok","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2701-4854","authenticated-orcid":false,"given":"Sung-Min","family":"Hwang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0750-3826","authenticated-orcid":false,"given":"Young Joon","family":"Cho","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,22]]},"reference":[{"key":"e_1_2_15_1_2","doi-asserted-by":"publisher","DOI":"10.1177\/0022034514552491"},{"key":"e_1_2_15_2_2","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1996.67.7.658"},{"key":"e_1_2_15_3_2","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1978.49.5.225"},{"key":"e_1_2_15_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ultsonch.2020.105112"},{"key":"e_1_2_15_5_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.2008.01347.x"},{"key":"e_1_2_15_6_2","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2006.050417"},{"key":"e_1_2_15_7_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0765.2006.00924.x"},{"key":"e_1_2_15_8_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-024-57037-7"},{"key":"e_1_2_15_9_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.1984.tb01309.x"},{"key":"e_1_2_15_10_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.2008.01258.x"},{"key":"e_1_2_15_11_2","first-page":"577","article-title":"Histologic Evaluation of an Nd:YAG Laser-Assisted New Attachment Procedure in Humans","volume":"27","author":"Yukna R. 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