Early incisor lesions and Equine Odontoclastic Tooth Resorption and Hypercementosis: Reliability of radiographic findings.
EOTRH
dentistry
horse
incisors
radiography
teeth
µCT
Journal
Equine veterinary journal
ISSN: 2042-3306
Titre abrégé: Equine Vet J
Pays: United States
ID NLM: 0173320
Informations de publication
Date de publication:
Mar 2023
Mar 2023
Historique:
revised:
19
02
2022
received:
15
09
2021
accepted:
10
03
2022
pubmed:
19
3
2022
medline:
9
2
2023
entrez:
18
3
2022
Statut:
ppublish
Résumé
In clinical practice, early diagnosis of Equine Odontoclastic Tooth Resorption and Hypercementosis (EOTRH) and other resorptive incisor diseases is difficult to achieve. The radiographic appearance of subtle pathological changes has not been described in detail and might be confused with age-related changes. The study was performed to define typical radiographic signs of early incisor lesions and to evaluate the reliability of the radiographic findings. Descriptive and comparative study using post mortem clinical, radiographic, macroscopic and µCT examination. The incisor region of 20 cadaveric horse heads, divided into three different age groups, was examined visually and by palpation. Intraoral radiographs were taken. After extraction, each incisor was macroscopically evaluated. Micro-computed tomography (µCT) scans were obtained. These scans were processed with Scry (v6.0, Kuchel & Sautter GbR) to obtain surface meshes which then were transferred to Meshlab (ISTI-CNR, version 2016.12). Attached tissues were virtually removed and surface curvature was computed to visualise and evaluate the quantity of unevenness (roughness) of the teeth's surface. Scoring systems for each diagnostic modality were developed. Scores were compared to describe and evaluate the radiographic appearance of early incisor lesions. The prevalence and severity of incisor lesions increased with age. Early, subtle lesions develop on the palatal/lingual side of incisors. While radiographically detected lesions were confirmed macroscopically and on the µCT scans, numerous teeth which were radiographically classified as healthy displayed lesions by macroscopic inspection (13.7%) and µCT analysis (58.1%). Cadavers were studied and dental history was unknown. The detection of early and subtle incisor lesions indicating first signs of EOTRH on dorsoventral intraoral radiographs is limited due to the typical localisation of the lesions on the palatal/lingual side of the incisors. 背景: 临床上对马齿碎屑吸收和牙骨质增生 (EOTRH) 以及其他吸收性切齿疾病的早期诊断比较困难。切齿早期病变的检测非常具有挑战性, 微小病变的x线片表现不能详细描述, 更可能与齿年龄相关的变化相混淆。 目的: 本研究旨在确定早期切齿病变的典型x线片特征, 并评估x线征象的可靠性。 研究设计: 采用尸检临床检查、x线片、大体检查以及µCT评价, 进行描述性和对比性研究。 方法: 对20例马尸体头部的切齿区进行视诊和触诊, 分为3个年龄组。拍摄口腔内x光片。拔除后对各门齿进行宏观大体检查。获得微计算机断层扫描(µCT)。这些扫描用Scry
Sections du résumé
BACKGROUND
BACKGROUND
In clinical practice, early diagnosis of Equine Odontoclastic Tooth Resorption and Hypercementosis (EOTRH) and other resorptive incisor diseases is difficult to achieve. The radiographic appearance of subtle pathological changes has not been described in detail and might be confused with age-related changes.
OBJECTIVES
OBJECTIVE
The study was performed to define typical radiographic signs of early incisor lesions and to evaluate the reliability of the radiographic findings.
STUDY DESIGN
METHODS
Descriptive and comparative study using post mortem clinical, radiographic, macroscopic and µCT examination.
METHODS
METHODS
The incisor region of 20 cadaveric horse heads, divided into three different age groups, was examined visually and by palpation. Intraoral radiographs were taken. After extraction, each incisor was macroscopically evaluated. Micro-computed tomography (µCT) scans were obtained. These scans were processed with Scry (v6.0, Kuchel & Sautter GbR) to obtain surface meshes which then were transferred to Meshlab (ISTI-CNR, version 2016.12). Attached tissues were virtually removed and surface curvature was computed to visualise and evaluate the quantity of unevenness (roughness) of the teeth's surface. Scoring systems for each diagnostic modality were developed. Scores were compared to describe and evaluate the radiographic appearance of early incisor lesions.
RESULTS
RESULTS
The prevalence and severity of incisor lesions increased with age. Early, subtle lesions develop on the palatal/lingual side of incisors. While radiographically detected lesions were confirmed macroscopically and on the µCT scans, numerous teeth which were radiographically classified as healthy displayed lesions by macroscopic inspection (13.7%) and µCT analysis (58.1%).
MAIN LIMITATIONS
CONCLUSIONS
Cadavers were studied and dental history was unknown.
CONCLUSIONS
CONCLUSIONS
The detection of early and subtle incisor lesions indicating first signs of EOTRH on dorsoventral intraoral radiographs is limited due to the typical localisation of the lesions on the palatal/lingual side of the incisors.
背景: 临床上对马齿碎屑吸收和牙骨质增生 (EOTRH) 以及其他吸收性切齿疾病的早期诊断比较困难。切齿早期病变的检测非常具有挑战性, 微小病变的x线片表现不能详细描述, 更可能与齿年龄相关的变化相混淆。 目的: 本研究旨在确定早期切齿病变的典型x线片特征, 并评估x线征象的可靠性。 研究设计: 采用尸检临床检查、x线片、大体检查以及µCT评价, 进行描述性和对比性研究。 方法: 对20例马尸体头部的切齿区进行视诊和触诊, 分为3个年龄组。拍摄口腔内x光片。拔除后对各门齿进行宏观大体检查。获得微计算机断层扫描(µCT)。这些扫描用Scry
Autres résumés
Type: Publisher
(chi)
背景: 临床上对马齿碎屑吸收和牙骨质增生 (EOTRH) 以及其他吸收性切齿疾病的早期诊断比较困难。切齿早期病变的检测非常具有挑战性, 微小病变的x线片表现不能详细描述, 更可能与齿年龄相关的变化相混淆。 目的: 本研究旨在确定早期切齿病变的典型x线片特征, 并评估x线征象的可靠性。 研究设计: 采用尸检临床检查、x线片、大体检查以及µCT评价, 进行描述性和对比性研究。 方法: 对20例马尸体头部的切齿区进行视诊和触诊, 分为3个年龄组。拍摄口腔内x光片。拔除后对各门齿进行宏观大体检查。获得微计算机断层扫描(µCT)。这些扫描用Scry
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
261-269Subventions
Organisme : IGFP (Internationale Gesellschaft zur Funktionsverbesserung der Pferdezähne e.V.).
Informations de copyright
© 2022 The Authors. Equine Veterinary Journal published by John Wiley & Sons Ltd on behalf of EVJ Ltd.
Références
Staszyk C, Bienert A, Kreutzer R, Wohlsein P, Simhofer H. Equine odontoclastic tooth resorption and hypercementosis. Vet J. 2008;178:372-9. https://doi.org/10.1016/j.tvjl.2008.09.017
Rahmani V, Häyrinen L, Kareinen I, Ruohoniemi M. History, clinical findings and outcome of horses with radiographical signs of equine odontoclastic tooth resorption and hypercementosis. Vet Record. 2019;185:730. https://doi.org/10.1136/vr.105253
Hole SL, Staszyk C. Equine odontoclastic tooth resorption and hypercementosis. Equine Vet Educ. 2018;30:386-91. https://doi.org/10.1111/eve.12603
Tremaine H. A Modern approach to equine dentistry 3. In Practice. 2012;34:114-27. https://doi.org/10.1136/inp.e1344
Barratt RM. Equine incisor resorptive lesions. In: Proceedings, 21st Annual Veterinary Dental Forum, vol. 21. Minneapolis, Minnesota, USA; 2007; p. 123-130.
Earley E, Rawlinson JT. A new understanding of oral and dental disorders of the equine incisor and canine teeth. Vet Clin N Am Equine Pract. 2013;29:273-300. https://doi.org/10.1016/j.cveq.2013.04.011
Henry TJ, Puchalski SM, Arzi B, Kass PH, Verstraete FJM. Radiographic evaluation in clinical practice of the types and stage of incisor tooth resorption and hypercementosis in horses. Equine Vet J. 2017;49:486-92. https://doi.org/10.1111/evj.12650
Rehrl S, Schröder W, Müller C, Staszyk C, Lischer C. Radiological prevalence of equine odontoclastic tooth resorption and hypercementosis. Equine Vet J. 2018;50:481-7. https://doi.org/10.1111/evj.12776
Englisch LM, Rott P, Lüpke M, Seifert H, Staszyk C. Anatomy of equine incisors: pulp horns and subocclusal dentine thickness. Equine Vet J. 2018;50:854-60. https://doi.org/10.1111/evj.12841
Schrock P, Lüpke M, Seifert H, Staszyk C. Three-dimensional anatomy of equine incisors: tooth length, enamel cover and age related changes. BMC Vet Res. 2013;9:249. https://doi.org/10.1186/1746-6148-9-249
Cohen J. A coefficient of agreement for nominal scales. Educ Psychol Measur. 1960;20(1):37-46. https://doi.org/10.1177/001316446002000104
McHugh ML. Interrater reliability: the kappa statistic. Biochemia Medica. 2012;22:276-82. https://doi.org/10.11613/BM.2012.031
Smedley RC, Earley ET, Galloway SS, Baratt RM, Rawlinson JE. Equine odontoclastic tooth resorption and hypercementosis: histopathologic features. Vet Path. 2015;52:903-9. https://doi.org/10.1177/0300985815588608
Lorello O, Foster DL, Levine DG, Boyle A, Engiles J, Orsini JA. Clinical treatment and prognosis of equine odontoclastic tooth resorption and hypercementosis. Equine Vet J. 2016;48:188-94. https://doi.org/10.1111/evj.12406
Pearson AM, Mansfield G, Conaway M, Koput K. Associated risk factors of equine odontoclastic tooth resorption and hypercementosis. Proc Am Assoc Equine Pract. 2013;59:65-70.
Limone LE. Update on equine odontoclastic tooth resorption and hypercementosis. Vet Clin N Am Equine Pract. 2020;36:671-89.
Schellenberger F EOTRH - Die Klinische Untersuchung - Eine Basis Für Den Therapieplan. In: 16. IGFP-Kongress / Conference, 09. - 10. März 2018 in Niedernhausen/Wiesbaden; IGFP: Parkstetten, 2018:78-80.
Schrock P, Lüpke M, Seifert H, Staszyk C. Finite element analysis of equine incisor teeth. Part 2: investigation of stresses and strain energy densities in the periodontal ligament and surrounding bone during tooth movement. Vet J. 2013;198:590-8. https://doi.org/10.1016/j.tvjl.2013.10.010
Dakin SG, Lam R, Rees E, Mumby C, West C, Weller R. Standing CT of the equine head. Equine Vet Educ. 2014;26:208-15. https://doi.org/10.1111/eve.12127
Strauch S, Schwarzer J, Kau S. Computertomografie in der Pferdezahnheilkunde - ein Überblick. Pferde Spiegel. 2019;22:23-36. https://doi.org/10.1055/a-0671-8580
Andreasen JO. Luxation of permanent teeth due to trauma: a clinical and radiographic follow-up study of 189 injured teeth. Eur J Oral Sci. 1970;78:273-86. https://doi.org/10.1111/j.1600-0722.1970.tb02074.x
Aidos H, Diogo P, Santos JM. Root resorption classifications: a narrative review and a clinical aid proposal for routine assessment. Eur Endod J. 2018;3:134-45. https://doi.org/10.14744/eej.2018.33043
Ne RF, Witherspoon DE, Gutmann JL. Tooth resorption. Quintessence Int. 1999;30:9-25.