[Histological evaluation of micro implant-bone interface following immediate versus delayed loading in a dog's mandibular bone]

Skeletal anchorage devices such as microimplants are successful attempts to have absolute anchorage. The aim of this study was to evaluate the effect of immediate and delayed orthodontic loading on maxillary and mandibular microimplants regarding histologic responses and bone implant contact [BIC] in a dog. Thirthy-two microimplants [Abso Anchor] were bilaterally placed in the mandibular premolar regions of four adult male dogs. The microimplants were divided into loaded and unloaded [control] groups. The control group had two subgroups of 4 and 8 weeks and the loaded group comprised two subgroups of immediate and delayed [after 4 weeks healing period] loading. Loaded samples were subjected to 200g load provided by Ni-Ti coil spring for 4 weeks. The decalcified specimens were prepared for histological examination under light microscope. The microimplants' surrounding tissue was observed histologically and the bone implant contact [BIC] percentage was calculated in each sample. Three way ANOVA was used to compare BICs in different groups. Mobility was detected in two mandibular microimplants, so the survival rate was calculated as 93.7%. BIC values were not significantly different between loaded and unloaded groups, and between immediate and delayed loaded groups. Immediate or delayed loading of microimplants does not load to significant difference in the bone-microimplant contact

Surgical repair of third-degree perineal laceration by Goetz technique in the mare: 7 cases [2000-2005]

Third-degree perineal lacerations in 7 mares were repaired surgically by a one-stage method [Goetz technique]. Primary healing occurred in all of them without any complication. The conception rate obtained after surgery was 70.1%. Five horses out of seven got pregnant after surgery and no further injury was seen at subsequent foaling. Three mares have produced several healthy foals without any subsequent injury. According to the results of the present study, single-stage surgical repair of third-degree perineal laceration [Goetz technique] appeared to have a good prognosis for subsequent fertility in mares

Radiographic and clinical evaluation of repair of furcal mechanical perforations in premolar teeth of dog using dark MTA, white MTA and Portland cement

One of the problems affecting the prognosis of the treatment is perforation which requires immediate and proper intervention. Dark MTA is applied as material of choice to repair perforations. The purpose of this study was to evaluate the repair of mechanical furcal perforations radiographically and clinically using white MTA and Portland cement and comparing them with dark MTA. In this experimental study, second to fourth mandibular and maxillary premolar teeth of five dogs received endodontic treatment following radiographic and clinical examinations. Then, the furcation area of the teeth was perforated and repaired with dark MTA in group 1, white MTA in group 2, Portland cement in group 3 and cotton pellet in group 4 [control]. Animals were controlled for 4 months and sacrificed using an overdose of Sodium thiopental intravenous injection after radiographic and clinical examinations. Chi-square test was used to compare groups for gingival attachment and presence of radiolucency. To compare these items between each two groups, Fisher's exact test was used. There was no statistically significant difference between dark MTA, white MTA and Portland cement groups in presence of radiolucency and gingival attachment. However, all the three groups were significantly different in radiolucency and gingival attachment from control group. Both white MTA and Portland cement revealed favourable results in repair of perforations and can be used as an alternative to dark MTA to repair perforations in the areas where esthetics is important and not important, respectively

Rupture of the peroneous tetrius in a horse

Rupture of the peroneous tertius was diagnosed in a 7-year-old stallion, based on clinical examinations. The stifle joint flexed as the limb was advanced forward without flexing the hock. When the limb was pulled backward, the hock joint extended but the stifle was in the normal position. The recommended treatment included complete stall rest for 6 weeks followed by limited exercise for 2 months. The animal, ultimately, returned back to its normal exercise

survey of white line disease in racehorse population in the North of Iran [Gonbad]

During summer 2000 and 2001, 482 racehorses kept in Gonbad in the North of Iran sere studied for white line disease. The survey was conducted when horses were being shoed by farriers. The horses that still exhibited damaged white line after regular trimming were diagnosed as having white line disease. The factors recorded were age, sex, number of diseased hooves, number of lesions by region over the bearing border of the hoof. The percentage of total diseased horses was 20.7% [100 horses], with incidence increasing significantly with age [P=0.00 1]. The occurrence of white line disease was independent of sex [P>0.05] and was observed more frequently in the fore- than in the hindhoof [P<0.05] and developed more frequently at the toe than at any other region of the forehoof-bearing border [P<0.05]

Fibrotic myopathy of the semitendinosus muscle in a thoroughbred foal

Fibrotic myopathy of the semitendinosus muscle was diagnosed in a 9-months-old female thoroughbred foal on the left hindleg. The cranial phase of the stride was shortened than normal and the foot was suddenly pulled caudally just before contacting to the ground during walking. A non-painful firmness area was palpated over the semitendinosus muscle on the caudal surface of the left hindleg above at the level of the stifle joint. Tenotomy of the tibial insertion of the semitendinosus muscle was undergone. The foal returned to the normal exercise one month after surgery