Occurrence of periodontitis and dental wear in dairy goats

Campello, P. L.; Borsanelli, Ana Carolina; Agostinho, Sabrina D.; Schweitzer, Christiane Marie; Gaetti‐Jardim, Elerson; Döbereiner, Jürgen; Dutra, Iveraldo S.

doi:10.1016/j.smallrumres.2019.05.004

Cited by 19 publications

(36 citation statements)

References 54 publications

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“…Similarly, a study on the occurrence of periodontitis and dental wear was performed in dairy goats, and the authors concluded that the main microorganisms isolated from sites with periodontitis were Fusobacterium nucleatum, Tannerella forsythia, and Fusobacterium necrophorum. However, although they found some similar microorganisms in periodontally healthy animals, as in the present study, the authors concluded that significant statistical association between the presence of identified periodontal pathogens and the occurrence of periodontitis was present [18].…”

Section: Discussioncontrasting

confidence: 65%

Comparative Study of Bacterial Isolates in Ovine Mandibular Osteomyelitis and Oral Microbiota of Healthy Sheep

et al. 2021

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Microorganisms involved in ovine mandibular osteomyelitis (OMO) have not yet been deeply studied. The aim of the present study is to elucidate the microorganisms involved in OMO, comparing them with the microorganisms found in the healthy oral cavity of sheep. Two hundred and five samples were taken from mandibular osteomyelitis lesions, and they were compared with the microbiological results of samples obtained from twelve periodontally healthy sheep. Sixty-four samples (32.98%) of OMO lesions showed pure growths, while 130 (67.01%) were mixed cultures. Microorganisms of the genus Streptococcus were the most frequently isolated (20.95%), followed by bacteria of the genus Pseudomonas (8.50%), Trueperella pyogenes (7.26%), Staphylococcus (6.63%) and Escherichia coli (6.22%). Ninety-one different isolates were obtained from healthy mouths, and again, microorganisms of the genus Streptococcus were the most frequent (16.48%), followed by bacteria of the genus Staphylococcus (13.18%), Pseudomonas (9.89%) and Moraxella (6.59%). Based on these and previous results, it could be concluded that the normal microbiota of the oral cavity could be involved in the development of OMO lesions when there is an injury of the gingiva that enables the entry of bacteria to the oral mucosa that eventually settle locally in bony tissues, causing mandibular osteomyelitis.

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Section: Discussioncontrasting

confidence: 65%

Comparative Study of Bacterial Isolates in Ovine Mandibular Osteomyelitis and Oral Microbiota of Healthy Sheep

et al. 2021

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“…In the present study, a high prevalence of Fusobacterium was observed in the oral microbiota of the two clinical conditions evaluated. This genus has recognised importance in the formation of dental biofilms and in recent studies its occurrence has also been reported in the oral microbiota of healthy and diseased sheep, goats and cattle with periodontitis [1, 15, 22]. In addition to being one of the most prevalent genera in animals with periodontitis, Petrimonas was also the most abundant genus among the unique genera identified in the dental microbiome of sheep with periodontitis.…”

Section: Discussionmentioning

confidence: 99%

“…The clinical status of 20 adult sheep from one herd at São Paulo State, was established through oral examination with the aid of a mouth-opening device and periodontal pocket depth was determined using a Williams periodontal probe [13, 14, 22].…”

Section: Methodsmentioning

confidence: 99%

“…Since periodontitis include alterations of the gingival tissue and a progressive loss of periodontal attachment and alveolar bone, the criteria for the the diagnosis of the disease was the presence of a periodontal pocket (the distance from the gingival margin to the bottom of the periodontal pocket as measured with a Williams periodontal probe) with a depth greater than 5 mm, with bleeding on probing (presence of blood around the gingival margin or inside the periodontal pocket after probing) and suppuration (presence of pus inside the periodontal pocket) in the incisor teeth [13,14,20,22].…”

Section: Periodontal Clinical Examinationmentioning

confidence: 99%

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Dental biofilm and its ecological interrelationships in ovine periodontitis

Borsanelli

Athayde

Agostinho

et al. 2021

Journal of Medical Microbiology

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Introduction. Periodontitis, one of the most common oral disorders in sheep, is caused by a mixed and opportunistic microbiota that severely affects the health and welfare of animals. However, little is known about the ecological processes involved and the composition of the microbiota associated with the development of the disease. Hypothesis/Gap Statement. Using high-throughput sequencing of the 16S ribosomal RNA gene and network analysis it would be possible to discriminate the microbiomes of clinically healthy sheep and those with periodontitis and possibly identify the key microorganisms associated with the disease. Aim. The present study aimed to characterise the composition of dental microbiomes and bacterial co-occurrence networks in clinically healthy sheep and animals with periodontitis. Methodology. Dental biofilm samples were collected from ten sheep with periodontitis and ten clinically healthy animals. Bacteria were identified using high-throughput sequencing of the 16S ribosomal RNA gene. Results. The most prevalent genera in the dental microbiota of sheep with periodontitis were Petrimonas , Acinetobacter , Porphyromonas and Aerococcus . In clinically healthy animals, the most significant genera were unclassified Pasteurellaceae, Pseudomonas, and Neisseria. Fusobacterium was found at high prevalence in the microbiomes of both groups. The dental microbiota of sheep in the two clinical conditions presented different profiles and the diversity and richness of bacteria was greater in the diseased animals. Network analyses showed the presence of a large number of antagonistic interactions between bacteria in the dental microbiota of animals with periodontitis, indicating the occurrence of a dysbiotic community. Through the interrelationships, members of the Prevotella genus are likely to be key pathogens, both in the dental microbiota of healthy animals and those with periodontitis. Porphyromonas stood out among the top three nodes with more centrality and the largest number of hubs in the networks of animals with periodontitis. Conclusion. The dental biofilm microbiota associated with ovine periodontitis is dysbiotic and with significant antagonistic interactions, which discriminates healthy animals from diseased animals and highlights the importance of key bacteria, such as Petrimonas , Porphyromonas , Prevotella and Fusobacterium species.

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“…It is a polymicrobial infectious disease that damages the supporting tissue of the teeth and causes occlusion change, tooth loss, and difficulty in rumination. Its origin is multifactorial, and it has to do with the bacterial flora of the mouth, the immune response of the individual, as well as with certain metabolic and environmental factors [2,[15][16][17][18]. The prevalence is usually high in herds.…”

Section: Introductionmentioning

confidence: 99%

Management of Risk Factors Associated with Chronic Oral Lesions in Sheep

Lacasta

González

Ferrer

et al. 2020

Animals

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Oral disorders constitute a significant cause of weight loss in sheep. In a study of disorders of the oral cavity of 36,033 sheep from 60 meat sheep flocks in Spain, we looked for management risk factors associated with chronic oral lesions. Mandibular and maxillary disorders were assessed as an external manifestation of oral lesions by palpation, searching for tissue swellings, fistulae, or open wounds. The prevalence of flocks containing sheep with jaw disorders was 98.3%, with an average individual prevalence of 5.5%. The majority of lesions were located in in the mid-region of the mandible, and the most relevant risk factor was increasing age. Use of acidic diets based on silage and inclusion of hard foods, such as maize straw or hay, was associated with the occurrence of jaw inflammation. It was concluded that hard diets containing plant material with edges and sharp areas, plus acidic foods including silage, are more likely to cause lesions of the gingiva, enabling entry of pathogens to the oral mucosa that eventually establish locally in bony tissues, usually as mandibular osteomyelitis. It was also observed that mineral supplementation appears to prevent the occurrence of these lesions.

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Occurrence of periodontitis and dental wear in dairy goats

Cited by 19 publications

References 54 publications

Comparative Study of Bacterial Isolates in Ovine Mandibular Osteomyelitis and Oral Microbiota of Healthy Sheep

Comparative Study of Bacterial Isolates in Ovine Mandibular Osteomyelitis and Oral Microbiota of Healthy Sheep

Dental biofilm and its ecological interrelationships in ovine periodontitis

Management of Risk Factors Associated with Chronic Oral Lesions in Sheep

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