scholarly journals Repair of alveolar cleft bone defects by bone collagen particles combined with hUC-MSCs in rabbit

2020 ◽  
Author(s):  
Xue-Cheng Sun ◽  
Hu Wang ◽  
Jian-Hui Li ◽  
Dan Zhang ◽  
Xu Ma ◽  
...  
Keyword(s):  
Bone Repair ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Bone Defects ◽  
Normal Group ◽  
Bone Collagen ◽  
Control Group ◽  
Human Umbilical Cord ◽  
Physical And Mental Health ◽  
Alveolar Cleft

Abstract Background: Alveolar cleft is a kind of cleft lip and palate, which seriously affects the physical and mental health of patients. In this study, a similar model of human alveolar cleft phenotype was established in rabbits to evaluate the effect of bone collagen particles combined with human umbilical cord mesenchymal stem cells (hUC-MSCs) on the repair of alveolar cleft bone defects. Methods: In this study, 24 adult Japanese white rabbits (JWRs) were selected and randomly divided into 4 groups. Including normal group, control group, materials group and MSCs group. The model of alveolar clefts was established by removing the incisors on the left side of the upper jaw. The normal group did nothing. In the control group, the incisors were removed and sutured directly. In the material group, the incisor were removed, then filled with bone collagen particles, and finally sutured. In the MSCs group, the incisors were first removed, then filled with bone collagen particles incubated by hUC-MSCs, and then stitched. Blood biochemical analysis was performed 3 months after the operation. Skull tissues were collected for gross observation, and micro-focus computerized tomography (micro-CT) analysis. Paraffin sections were prepared for histological and immunohistochemical staining. Results: The bone collagen particles and hUC-MSCs are not biotoxic and can promote alvenlus regeneration. Bone collagen particles combined with hUC-MSCs were much better than those used alone in inducing bone repair and regeneration. Conclusions: HUC-MSCs can be used as a bone generation inducer combined with bone collagen materials for bone regeneration and repair.

scholarly journals Repair of alveolar cleft bone defects by bone collagen particles combined with human umbilical cord mesenchymal stem cells in rabbit

2020 ◽  
Author(s):  
Xue-Cheng Sun ◽  
Hu Wang ◽  
Jian-Hui Li ◽  
Dan Zhang ◽  
Xu Ma ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Umbilical Cord ◽  
Bone Repair ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Bone Defects ◽  
Bone Collagen ◽  
Human Umbilical Cord ◽  
Alveolar Cleft

Abstract Background: Alveolar cleft is a kind of cleft lip and palate, which seriously affects the physical and mental health of patients. In this study ， the model of the alveolar cleft phenotype was established in rabbits to evaluate the effect of bone collagen particles combined with human umbilical cord mesenchymal stem cells (HUC-MSCs) on the repair of alveolar cleft bone defects. Methods : The model of alveolar clefts in rabbits was established by removing the incisors on the left side of the upper jaw. Bone collagen particles combined with hUC-MSCs were implanted in the defect area. Blood biochemical analysis was performed after 3 months. Skull tissues were harvested for gross observation, and micro-focus computerized tomography (micro-CT) analysis. Tissues were harvested for histological and immunohistochemical staining. The experiments were repeated 6 months after surgery. Results: The bone collagen particles and HUC-MSCs have good biological safety. In addition, both can promote the regeneration of incisor. Bone collagen particles combined with hUC-MSCs were much better than those used alone in inducing bone repair and regeneration. Conclusions: The method of HUC-MSCs combined with bone collagen particle material to fill a bone defect site is simple, rapid and suitable for the treatment of alveolar cleft bone defects.

scholarly journals Bone collagen particles combined with hUC-MSCs to repair alveolar cleft in rabbits

2020 ◽  
Author(s):  
Xue-Cheng Sun ◽  
Hu Wang ◽  
Jian-Hui Li ◽  
Dan Zhang ◽  
Xu Ma ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Computerized Tomography ◽  
Umbilical Cord ◽  
Normal Group ◽  
Bone Collagen ◽  
Control Group ◽  
Human Umbilical Cord ◽  
Micro Ct ◽  
Alveolar Cleft

Abstract Background: Alveolar cleft is a kind of cleft lip and palate, which seriously affects the physical and mental health of patients. In this study, a similar model of human alveolar cleft phenotype was established in rabbits to evaluate the effect of bone collagen particles combined with human umbilical cord mesenchymal stem cells (hUC-MSCs) on the repair of alveolar cleft. Materials &Methods : In this study, 24 adult Japanese white rabbits (JWRs) were selected and randomly divided into 4 groups. Including normal group, control group, materials group and MSCs group. The model of alveolar cleft was established by removing the incisors on the left side of the upper jaw. The normal group did not receive any treatment. In the control group, the incisors were removed and sutured directly. In the material group, the incisor were removed, then filled with bone collagen particles, and finally sutured. In the MSCs group, the incisors were first removed, then filled with bone collagen granules incubated by hUC-MSCs, and then stitched. Blood biochemical analysis was performed 3 months after the operation. Skull tissues were collected for gross observation, and micro-focus computerized tomography (micro-CT) analysis. Paraffin sections were prepared for histological and immunohistochemical staining. Results: The bone collagen particles and hUC-MSCs are not biotoxic and can promote alvenlus regeneration. Bone collagen particles combined with hUC-MSCs were much better than those used alone in inducing bone repair and regeneration. Conclusions: HUC-MSCs can be used as a bone generation inducer combined with bone materials for bone regeneration and repair. Keywords: alveolar cleft，Bone collagen particle, hUC-MSCs (human umbilical cord mesenchymal stem cells),micro-focus computerized tomography (micro-CT)

Sri Lankan Cleft Lip and Palate Study Model Analysis: Clefts of the Secondary Palate

1993 ◽  
Vol 30 (2) ◽  
pp. 227-230 ◽  
Author(s):  
Andrew Mccance ◽  
David Roberts-Harry ◽  
Martyn Sherriff ◽  
Michael Mars ◽  
William J.B. Houston
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Model Analysis ◽  
Control Group ◽  
Tooth Size ◽  
Sri Lankan ◽  
Control Groups ◽  
Secondary Palate ◽  
Comparable Control ◽  
And Control

The study models of a group of adult Sri Lankan patients with clefts of the secondary palate were investigated. Tooth-size and arch-dimension comparisons were made with a comparable control group. Significant differences were found between the cleft and control groups in tooth sizes, chord lengths, and arch widths. The cleft group dimensions were generally smaller than those of the control group. Overjets were larger in the cleft group.

Oral Health-Related Quality of Life Among Sudanese Children Treated for Cleft Lip and Palate

2021 ◽  
pp. 105566562098769
Author(s):  
Mecheala Abbas Ali ◽  
Alwaleed Fadul Nasir ◽  
Shaza K. Abass
Keyword(s):  
Quality Of Life ◽  
Oral Health ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Control Group ◽  
Arabic Version ◽  
Health Related Quality ◽  
Related Quality ◽  
Health Related

Objective: This study compared the oral health-related quality of life (OHRQoL) among children with a cleft lip with or without a cleft palate (CL±P) and a group of their peers. The reliability of the Arabic version of the Child Oral Health Impact Profile Questionnaire (COHIP) was also assessed. Design: A cross-sectional study. Settings: Cleft clinic in a private dental college in Omdurman City, Sudan. Patients: In all, 75 children (mean age 11.3 ± 2.5 years) with a history of CL±P and a group of 150 school children without CL±P (mean age 11.4 ± 2.6 years). Main Outcome Measures: Overall and subscale scores on the Arabic version of the COHIP. Results: Test–retest reliability of COHIP in Arabic was high with an interclass correlation coefficient >0.8. Cronbach α value internal consistency was 0.8 for the total scale and between 0.7 and 0.8 for the subscales. The COHIP score was 89.41 ± 19.97 in children with CL±P and 122.82 ± 9.45 for the control group. Children with CL±P had significantly lower scores on the overall and all subscales when compared to children without CL±P ( P ≤ .001). Among the children with CL±P, there were no statistically significant differences on the COHIP based on age and/or gender ( P ≥ .05). Conclusions: Children with CL±P had a relatively high OHRQoL, which was lower than that of their peers without CL±P in both the overall scale and all subscales. Gender and age differences had no significant impact on the OHRQoL. The COHIP Arabic version showed appropriate reliability.

Perceptual Speech Outcomes After Early Primary Palatal Repair in Ugandan Patients With Cleft Palate

2020 ◽  
pp. 105566562098024
Author(s):  
Kim Bettens ◽  
Laura Bruneel ◽  
Cassandra Alighieri ◽  
Daniel Sseremba ◽  
Duncan Musasizib ◽  
...  
Keyword(s):  
Cleft Palate ◽  
Cleft Lip ◽  
Speech Therapy ◽  
Cleft Lip And Palate ◽  
Control Group ◽  
English Speaking ◽  
And Gender ◽  
Early Primary ◽  
Velopharyngeal Function ◽  
Normal Speech

Objective: To provide speech outcomes of English-speaking Ugandan patients with a cleft palate with or without cleft lip (CP±L). Design: Prospective case–control study. Setting: Referral hospital for patients with cleft lip and palate in Uganda. Participants: Twenty-four English-speaking Ugandan children with a CP±L (15 boys, 9 girls, mean 8.4 years) who received palatal closure prior to 6 months of age and an age- and gender-matched control group of Ugandan children without cleft palate. Interventions: Comparison of speech outcomes of the patient and control group. Main Outcome Measures: Perceptual speech outcomes including articulation, resonance, speech understandability and acceptability, and velopharyngeal composite score (VPC-sum). Information regarding speech therapy, fistula rate, and secondary surgery. Results: Normal speech understandability was observed in 42% of the patients, and 38% were judged with normal speech acceptability. Only 16% showed compensatory articulation. Acceptable resonance was found in 71%, and 75% of the patients were judged perceptually to present with competent velopharyngeal function based on the VPC-sum. Additional speech intervention was recommended in 25% of the patients. Statistically significant differences for all these variables were still observed with the control children ( P < .05). Conclusions: Overall, acceptable speech outcomes were found after early primary palatal closure. Comparable or even better results were found in comparison with international benchmarks, especially regarding the presence of compensatory articulation. Whether this approach is transferable to Western countries is the subject for further research.

scholarly journals Alveolar cleft and maximum cleft width as predictors for difficult laryngoscopy and intubation in patients with unilateral complete cleft lip and palate

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Gamal A. Abdelhameed ◽  
Wael A. Ghanem ◽  
Simon H. Armanios ◽  
Tamer Nabil Abdelrahman
Keyword(s):  
Body Weight ◽  
Odds Ratio ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Difficult Laryngoscopy ◽  
Secondary Outcome ◽  
Pediatric Airway ◽  
Alveolar Cleft ◽  
Cleft Lip Palate ◽  
Width Measurements

Abstract Background Cleft lip and palate is one of the commonest congenital anomalies, which have an impact on feeding, speech, and dental development away from the significant psychosocial sequel. Early surgical repair aims to restore appearance and function, and the modern techniques can leave many defects undetectable. Therefore, the anesthetic challenge facing the pediatric airway with such abnormalities is still of a great impact. The aim of our study among 189 patients enrolled is to correlate alveolar gap and maximum cleft width measurements as predictors of difficult laryngoscopy and intubation in infants with unilateral complete cleft lip/palate aging from 1 to 6 months. As a secondary outcome, their weight is to be correlated too as another parameter. Results The alveolar gap and maximum cleft width are both of equal high predictive power (p value ≤ 0.001) with 100% sensitivity for both and specificity of 76.10% and 82.39% respectively, with a cut off value of ≤ 10 mm and 11 mm for these dimensions respectively, and odds ratio of incidence of difficult intubation is 4.18 and 5.68 respectively, while body weight ≤ 5.75 kg has an odds ratio of 2.32. Conclusion Alveolar cleft and maximum cleft width can be used as predictors for anticipation of difficult laryngoscopy and intubation infant patients with unilateral complete cleft lip and palate, while body weight ≤ 5.75 kg increases the risk more than twice.

Comparison of Dental Caries Prevalence in Patients with Cleft Lip and/or Palate and Their Sibling Controls

2009 ◽  
Vol 46 (5) ◽  
pp. 529-531 ◽  
Author(s):  
Mahmoud Al-Dajani
Keyword(s):  
Dental Caries ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Maxillofacial Surgery ◽  
Permanent Teeth ◽  
Control Group ◽  
Oral And Maxillofacial Surgery ◽  
Caries Prevalence ◽  
Dmft Index ◽  
And Control

Objective: To evaluate the prevalence of dental caries in patients with cleft lip and/or palate and their cleft-free sibling controls. Methods: The two subject groups (patient and control) comprised 106 participants. The former group consisted of 53 patients with cleft lip and/or palate, aged 12 to 29 years, who visited the Oral and Maxillofacial Surgery Hospital at Damascus University of Syria. The control group consisted of the patients’ siblings who had no clefts, and they were sex matched to the patient group. Dental caries were examined clinically and were reported using the decayed, missing, and filled permanent teeth (DMFT) index. The DMFT scores were compared between the two groups. Results: The author found an overall association of dental caries with the presence of cleft lip and/or palate (odds ratio  =  2.52; 95% confidence interval  =  1.389–4.574; p < .05). The DMFT index scores were proportionally higher in patients with cleft lip and/or palate compared with the control group (p < .001). Conclusion: Subjects with cleft lip and palate are susceptible to dental caries independently of socioeconomic status.

Rehabilitation of a Patient with Cleft Lip and Palate with an Extremely Edentulous Atrophied Posterior Maxilla Using Zygomatic Implants: Case Report

2004 ◽  
Vol 41 (5) ◽  
pp. 571-574 ◽  
Author(s):  
Anh Viet Pham ◽  
Marcelo Abarca ◽  
Albert De Mey ◽  
Chantal Malevez
Keyword(s):  
Case Report ◽  
Bone Grafting ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Oral Implants ◽  
Alveolar Cleft ◽  
Dental Prostheses ◽  
Posterior Maxilla ◽  
Zygomatic Implants ◽  
Dental Rehabilitation

Objective This case report describes the clinical and surgical management of a patient with a unilateral alveolar cleft and associated extremely atrophied totally edentulous maxilla. Method Two zygomatic implants and four endosseous oral implants were placed under general anesthesia in a compromised maxilla to rehabilitate a 33-year-old patient with cleft lip and palate. The two specially designed zygomatic implants were utilized to avoid the need for bone grafting in the patient. The final prosthetic rehabilitation was an esthetic and functional maxillary overdenture prosthesis supported by implants. Results Preliminary results have shown how dental prostheses supported by endosseous implants in grafted alveolar cleft are a reliable possibility in the dental rehabilitation of this malformation. Conclusion The use of zygomatic implants may be considered a reliable alternative to more resource-demanding techniques such as bone grafting in patients with cleft palate.

scholarly journals Regeneration in Experimental Alveolar Bone Defect Using Human Umbilical Cord Mesenchymal Stem Cells

2021 ◽  
Vol 30 ◽  
pp. 096368972097539
Author(s):  
Akiko Toyota ◽  
Rei Shinagawa ◽  
Mikiko Mano ◽  
Kazuyuki Tokioka ◽  
Naoto Suda
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Bone Formation ◽  
Cleft Lip ◽  
Human Umbilical Cord ◽  
Bone Surface ◽  
Bone Bridge ◽  
Bridge Formation ◽  
Alveolar Cleft ◽  
Umbilical Cords

Cleft lip and palate is a congenital disorder including cleft lip, and/or cleft palate, and/or alveolar cleft, with high incidence.The alveolar cleft causes morphological and functional abnormalities. To obtain bone bridge formation and continuous structure between alveolar clefts, surgical interventions are performed from infancy to childhood. However, desirable bone bridge formation is not obtained in many cases. Regenerative medicine using mesenchymal stem cells (MSCs) is expected to be a useful strategy to obtain sufficient bone bridge formation between alveolar clefts. In this study, we examined the effect of human umbilical cord-derived MSCs by transplantation into a rat experimental alveolar cleft model. Human umbilical cords were digested enzymatically and the isolated cells were collected (UC-EZ cells). Next, CD146-positive cells were enriched from UC-EZ cells by magnetic-activated cell sorting (UC-MACS cells). UC-EZ and UC-MACS cells showed MSC gene/protein expression, in vitro. Both cells had multipotency and could differentiate to osteogenic, chondrogenic, and adipogenic lineages under the differentiation-inducing media. However, UC-EZ cells lacked Sox2 expression and showed the lower ratio of MSCs than UC-MACS cells. Thus, UC-MACS cells were transplanted with hydroxyapatite and collagen (HA + Col) into alveolar cleft model to evaluate bone formation in vivo. The results of micro computed tomography and histological staining showed that UC-MACS cells with HA + Col induced more abundant bone formation between the experimental alveolar clefts than HA + Col implantation only. Cells immunopositive for osteopontin were accumulated along the bone surface and some of them were embedded in the bone. Cells immunopositive for human-specific mitochondria were aligned along the newly formed bone surface and in the new bone, suggesting that UC-MACS cells contributed to the bone bridge formation between alveolar clefts. These findings indicate that human umbilical cords are reliable bioresource and UC-MACS cells are useful for the alveolar cleft regeneration.

Sign in / Sign up

Export Citation Format

Share Document