Clinical, radiographic and histological findings of seven teeth from two California sea lions (Zalophus californianus) housed under professional care

Seven teeth extracted from two adult California sea lions (Zalophus californianus) due to pulp exposure and/or to gain access to the mandibular canine teeth were histologically evaluated, and the findings were compared with clinical and radiographic findings. Three teeth were diagnosed with pulp exp...

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Main Authors: Ana Nemec, Margherita Gracis, Tania Monreal-Pawlowsky, William Magnone, Antonella Pritelli, Cynthia Bell
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-02-01
Series:Frontiers in Veterinary Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2024.1335960/full
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author Ana Nemec
Margherita Gracis
Margherita Gracis
Tania Monreal-Pawlowsky
William Magnone
Antonella Pritelli
Cynthia Bell
author_facet Ana Nemec
Margherita Gracis
Margherita Gracis
Tania Monreal-Pawlowsky
William Magnone
Antonella Pritelli
Cynthia Bell
author_sort Ana Nemec
collection DOAJ
description Seven teeth extracted from two adult California sea lions (Zalophus californianus) due to pulp exposure and/or to gain access to the mandibular canine teeth were histologically evaluated, and the findings were compared with clinical and radiographic findings. Three teeth were diagnosed with pulp exposure, and two of these showed no radiographic signs of endodontic disease and were histologically vital with prominent coronal pulpitis and a pulp polyp. Another tooth with pulp exposure was showing clinical and radiographic signs of endodontic disease and was histologically confirmed with pulp necrosis. A discoloured incisor tooth was showing radiographic signs of endodontic disease and was also histologically non-vital. Two clinically and radiographically healthy mandibular first premolar teeth and one second incisor tooth had no evidence of pulpitis or pulp necrosis but had pulp canal obliteration. Regular clinical and radiographic follow-up for 5 months to 3 years after the procedures confirmed uneventful healing of the extraction sites, despite initial flap’s dehiscence. Although extractions of affected teeth in California sea lions are considered the most practical and beneficial therapy, these are associated with the risks of extensive trauma and anaesthesia and the need to perform these surgical procedures on-site under variable conditions. As California sea lions can be trained to allow conscious dental radiographic re-checks, monitoring teeth with clinical signs of pulp polyp formation and without radiographic signs of endodontic disease warrant further evaluation/reconsideration from previous recommendations. Endodontic treatment of abscessed teeth in California sea lions is reportedly unsuccessful and is discouraged. However, vital pulpectomy could be an alternative treatment to extraction in teeth with pulp polyps as it was found to be highly successful in humans, but the possibility of endodontic failure and need for further treatments should be weighted in the treatment choice.
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spelling doaj.art-1eabb5a6dc354817b7bb12a012fd06e42024-02-13T04:33:55ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692024-02-011110.3389/fvets.2024.13359601335960Clinical, radiographic and histological findings of seven teeth from two California sea lions (Zalophus californianus) housed under professional careAna Nemec0Margherita Gracis1Margherita Gracis2Tania Monreal-Pawlowsky3William Magnone4Antonella Pritelli5Cynthia Bell6Dentistry and Oral Surgery Department, Small Animal Clinic, Veterinary Faculty, University of Ljubljana, Ljubljana, SloveniaDepartment of Dentistry, Oral, and Maxillofacial Surgery, Istituto Veterinario di Novara AniCura, Novara, ItalyDepartment of Dentistry, Oral and Maxillofacial Surgery, Clinica Veterinaria San Siro AniCura, Milan, ItalyInternational Zoo Veterinary Group, Keighley, United KingdomParco Natura Viva - Garda Zoologicalparc, Verona, ItalyGardaland Sea Life, Castelnuovo del Garda, Verona, ItalySpecialty Oral Pathology for Animals, LLC, Geneseo, IL, United StatesSeven teeth extracted from two adult California sea lions (Zalophus californianus) due to pulp exposure and/or to gain access to the mandibular canine teeth were histologically evaluated, and the findings were compared with clinical and radiographic findings. Three teeth were diagnosed with pulp exposure, and two of these showed no radiographic signs of endodontic disease and were histologically vital with prominent coronal pulpitis and a pulp polyp. Another tooth with pulp exposure was showing clinical and radiographic signs of endodontic disease and was histologically confirmed with pulp necrosis. A discoloured incisor tooth was showing radiographic signs of endodontic disease and was also histologically non-vital. Two clinically and radiographically healthy mandibular first premolar teeth and one second incisor tooth had no evidence of pulpitis or pulp necrosis but had pulp canal obliteration. Regular clinical and radiographic follow-up for 5 months to 3 years after the procedures confirmed uneventful healing of the extraction sites, despite initial flap’s dehiscence. Although extractions of affected teeth in California sea lions are considered the most practical and beneficial therapy, these are associated with the risks of extensive trauma and anaesthesia and the need to perform these surgical procedures on-site under variable conditions. As California sea lions can be trained to allow conscious dental radiographic re-checks, monitoring teeth with clinical signs of pulp polyp formation and without radiographic signs of endodontic disease warrant further evaluation/reconsideration from previous recommendations. Endodontic treatment of abscessed teeth in California sea lions is reportedly unsuccessful and is discouraged. However, vital pulpectomy could be an alternative treatment to extraction in teeth with pulp polyps as it was found to be highly successful in humans, but the possibility of endodontic failure and need for further treatments should be weighted in the treatment choice.https://www.frontiersin.org/articles/10.3389/fvets.2024.1335960/fullCalifornia sea lionendodontic diseasepulpitisdental pulp polypdental pulp necrosis
spellingShingle Ana Nemec
Margherita Gracis
Margherita Gracis
Tania Monreal-Pawlowsky
William Magnone
Antonella Pritelli
Cynthia Bell
Clinical, radiographic and histological findings of seven teeth from two California sea lions (Zalophus californianus) housed under professional care
Frontiers in Veterinary Science
California sea lion
endodontic disease
pulpitis
dental pulp polyp
dental pulp necrosis
title Clinical, radiographic and histological findings of seven teeth from two California sea lions (Zalophus californianus) housed under professional care
title_full Clinical, radiographic and histological findings of seven teeth from two California sea lions (Zalophus californianus) housed under professional care
title_fullStr Clinical, radiographic and histological findings of seven teeth from two California sea lions (Zalophus californianus) housed under professional care
title_full_unstemmed Clinical, radiographic and histological findings of seven teeth from two California sea lions (Zalophus californianus) housed under professional care
title_short Clinical, radiographic and histological findings of seven teeth from two California sea lions (Zalophus californianus) housed under professional care
title_sort clinical radiographic and histological findings of seven teeth from two california sea lions zalophus californianus housed under professional care
topic California sea lion
endodontic disease
pulpitis
dental pulp polyp
dental pulp necrosis
url https://www.frontiersin.org/articles/10.3389/fvets.2024.1335960/full
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