A prospective, split-mouth, clinical study of orthodontic titanium miniscrews with machined and acid-etched surfaces

ABSTRACT Objectives: To determine whether the success rate and primary stability of surface-treated miniscrews differ from those of nontreated miniscrews. Materials and Methods: Patients who required one or more miniscrews for the same reason in each quadrant were recruited into a single-blinded, split-mouth, randomized, controlled trial with a 1:1 allocation ratio. Self-drilling miniscrews with two surface types were used: those with no surface treatment, and those with an acid-etched surface treatment. The cumulative success rate and primary stability of each type of miniscrew were examined, and factors potentially affecting the success and failure of miniscrews were investigated. Results: Forty patients were included in the study, with a total of 98 orthodontic miniscrews. The overall success rate was 88.8%, and the respective success rates for acid-etched and machined surface miniscrews were 91.8% and 85.7%. The respective mean insertion torques were 13.62 ± 5.95 N·cm and 13.38 ± 4 N·cm, and periotest values measured immediately after insertion were −0.50 ± 2.77 for acid-etched miniscrews and −0.28 ± 3.36 for machined surface miniscrews. There was no significant difference in the mean insertion torques and periotest values according to surface treatment and jaw. Conclusions: Neither the success rate nor the primary stability of acid-etched surface miniscrews and machined surface miniscrews differed significantly. There is a high possibility that miniscrews will fall out in patients who have an open bite or those who require total distalization.

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Rotational Resistance of Surface-Treated Mini-Implants

The Angle Orthodontist ◽

10.2319/090608-466.1 ◽

2009 ◽

Vol 79 (5) ◽

pp. 899-907 ◽

Cited By ~ 63

Author(s):

Seong-Hun Kim ◽

Shin-Jae Lee ◽

Il-Sik Cho ◽

Seong-Kyun Kim ◽

Tae-Woo Kim

Keyword(s):

Angular Momentum ◽

Total Energy ◽

Surface Treatment ◽

Mixed Model ◽

Block Design ◽

Insertion Torque ◽

Success Rates ◽

Machined Surface ◽

Mini Implants ◽

Significant Difference

Abstract Objective: To test the hypothesis that there is no difference in the stability and resistance to rotational moments of early loaded sandblasted and acid-etched (SLA) mini-implants and those of machined-surface implants of the same size and shape. Materials and Methods: A randomized complete block design was used in 12 skeletally mature male beagle dogs. Ninety-six orthodontic mini-implants were tested. Two types of implants were used: some had SLA surface treatment and some had machined surfaces without coating. After 3 weeks of healing, rotational moments of 150 g were applied. The success rates, maximum torque values, angular momentum, and total energy absorbed by the bone were compared. All values were subjected to mixed-model analysis to evaluate the influence of surface treatment, rotational force direction, and site of implantation. Results: The maximum insertion torque and angular momentum of SLA implants were significantly lower than those of machined implants (P = .034, P = .039). The SLA implants had a significantly higher value for total removal energy than the machined implants (P = .046). However, there were no significant differences in total insertion energy, maximum removal torque, and removal angular momentum between the 2 groups. There was no significant difference between clockwise and counterclockwise rotation in all measurements. Conclusion: SLA mini-implants showed relatively lower insertion torque value and angular momentum and higher total energy during removal than the machined implants, suggesting osseointegration of the SLA mini-implant after insertion.

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Is Allergic Rhinitis a Factor That Affects Success of Tympanoplasty?

Acta Medica (Hradec Kralove Czech Republic) ◽

10.14712/18059694.2016.48 ◽

2016 ◽

Vol 59 (1) ◽

pp. 10-13

Author(s):

Elif Ersoy Callioglu ◽

A. Sami Bercin ◽

Hayati Kale ◽

Togay Muderris ◽

Sule Demirci ◽

...

Keyword(s):

Allergic Rhinitis ◽

Success Rate ◽

Middle Ear ◽

Success Rates ◽

Type 1 Tympanoplasty ◽

Significant Difference ◽

Patient Groups ◽

The Difference ◽

Graft Success

Objective: The aim of the present study was to investigate the effect of allergic rhinitis on the success of the operation in chronic otitis surgery by using score for allergic rhinitis (SFAR). Materials and Methods: In the present study; 121 patients, who underwent type 1 tympanoplasty were examined retrospectively. SFAR of all patients were recorded. The graft success rates of 26 patients with allergic rhinitis (AR) and 95 patients with no allergic rhinitis group (NAR) were compared. Results: While the graft success rate in NAR group was 89.5%, this rate was 80.8% in the AR group. However, the difference between groups was not statistically significant (p = 0.311). Conclusion: These findings suggest that allergic rhinitis decreases the graft success rate of the pathologies occurring in eustachian tube, middle ear and mastoid although statistically significant difference wasn’t found. Prospective studies with larger patient groups are required in order to evaluate this pathology.

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Landmark-guided Versus Modified Ultrasound-assisted Paramedian Techniques in Combined Spinal-epidural Anesthesia for Elderly Patients with Hip Fractures: A Randomized Controlled Trial

10.21203/rs.3.rs-30630/v2 ◽

2020 ◽

Author(s):

Bo Qu ◽

Luying Chen ◽

Yuling Zhang ◽

Mengting Jiang ◽

Caineng Wu ◽

...

Keyword(s):

Elderly Patients ◽

Success Rate ◽

Hip Fractures ◽

Controlled Trial ◽

Median Number ◽

Needle Insertion ◽

Success Rates ◽

First Pass ◽

Ultrasound Assisted ◽

Ultrasound Group

Abstract Background: Combined spinal-epidural (CSE) anesthesia is considerably challenging for elderly patients with hip fractures due to spine degeneration and limitations in positioning. This study aimed to investigate the ability of a modified preprocedural ultrasound-guided technique to improve the success rate and efficacy of CSE anesthesia for elderly patients with hip fractures. Methods: This prospective, single-blinded, parallel-group randomized controlled trial included 80 patients (aged ≥ 65 years) who were scheduled for elective hip fracture surgery with CSE anesthesia. Patients were randomly allocated into landmark group (n = 40) or the ultrasound group (n = 40). The primary outcome was first-pass success rate. Secondary outcomes included first-attempt success rate; number of needle insertion attempts; number of needle passes; locating, puncture, and total time; level of block; procedural adverse reactions and postoperative complications; and patient satisfaction score. Patients were blinded to group allocation.Results: 80 patients completed the study and were included in the final analysis. The first-pass success rates for the landmark and ultrasound groups were 20% and 70%, respectively (P < 0.001). The first-attempt success rates in the landmark and ultrasound groups were 42.5% and 85%, respectively (P < 0.001). The median number of attempts was lower in ultrasound-assisted group (1[1,1]) than landmark-guided group (2[1,2]), P < 0.001). The median number of needle passes was lower in ultrasound group (1[1,2]) than in landmark-guided group (3[2,4], P < 0.001). The locating time (P < 0.001) and total time (P = 0.001) were longer in the ultrasound group, while puncture time was shorter (P = 0.003). No significant difference was found regarding the incidence of adverse reactions and complications. More patients in the ultrasound group had a high satisfaction score of 4–5 (P = 0.007). Interestingly, subgroup analysis demonstrated benefits for ultrasound in patients with scoliosis.Conclusions: Modified ultrasound-assisted CSE anesthesia increases first-pass and first-attempt success rates, and reduces needle insertion attempts, passes, and puncture time for elderly patients with hip fracture, especially those with scoliosis. This technique improves patient satisfaction and warrants consideration for application in clinical practice.Trial registration: Chinese Clinical Trial Register (identifier, ChiCTR1900020819; date of registration, January 20, 2019).

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Hyperpronation versus Supination–Flexion in Radial Head Subluxation Reduction: A Randomized Controlled Trial

Journal of Pediatric Intensive Care ◽

10.1055/s-0040-1709703 ◽

2020 ◽

Vol 09 (04) ◽

pp. 256-260

Author(s):

Samaneh Porozan ◽

Arash Forouzan ◽

Rayeheh Hassanzadeh

Keyword(s):

Success Rate ◽

Radial Head ◽

Controlled Trial ◽

Reduction Technique ◽

Extremity Injury ◽

Success Rates ◽

Randomized Controlled ◽

Before And After ◽

Upper Extremity Injury ◽

Successful Reduction

AbstractRadial head subluxation (RHS) is the most common upper extremity injury in children. Supination–flexion (SF) and hyperpronation (HP) are two methods for reducing this subluxation. This study purposed to compare the success rates of two methods of reduction and also to determine which technique would be less painful. In total, 154 patients with RHS were enrolled in this study and randomized into two groups. Patients were to undergo reduction by one of the two methods; if the primary attempt was unsuccessful, a second attempt was performed using the alternate technique. In the case of failure of the second attempt, the first reduction technique was repeated. The success rates and pain levels before and after successful reduction were recorded. On the first attempt, 72 of 77 patients who underwent HP had a successful reduction. Four patients in the HP group had a successful reduction on the second attempt. In the SF group, 76 of 77 patients had a successful reduction on the first attempt. The success rate on first attempts was higher in the SF group than in the HP group (p = 0.043). Pain levels before and after reduction were not statistically different between the groups (p > 0.05). The SF technique had a higher success rate at first attempt to reduce RHS, but pain levels were similar in both methods.

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A preinstalled nasopharyngeal airway in the right nasal passageway to facilitate nasogastric intubation in anesthetized and intubated patients: a prospective randomized controlled trial

BMC Gastroenterology ◽

10.1186/s12876-020-01514-6 ◽

2020 ◽

Vol 20 (1) ◽

Author(s):

Ting-Yang Huang ◽

Jr-Rung Lin ◽

Yung-Tai Chung

Keyword(s):

Randomized Controlled Trial ◽

Success Rate ◽

Risk Reduction ◽

Controlled Trial ◽

Success Rates ◽

Randomized Controlled ◽

Prospective Randomized Controlled Trial ◽

Nasopharyngeal Airway ◽

The Right ◽

To Receive

Abstract Background Nasogastric intubation (NGI) is usually challenging in patients under general anesthesia, with reported success rate at the first attempt to be less than 50%. The aim of this study was to investigate whether a preinstalled nasopharyngeal airway (NPA) in the right nasal passageway can facilitate NGI in anesthetized and intubated patients. Methods A prospective randomized controlled trial including 108 patients scheduled for elective intra-abdominal surgeries requiring a nasogastric tube (NGT) was conducted. Fifty-three patients were randomized to receive NGI through a preinstalled NPA in the right nasal passageway (Group NPA) and 55 patients to receive NGI via the right nostril (Group O). The primary outcomes were success rates of NGI at first attempt, success rates of NGI in accumulative attempts, durations of successful NGI at the first attempt and success rates of NGI for the rescuing methods. The secondary outcomes were bleeding incidence and hemodynamic changes induced by NGI. Results Success rate of NGI at the first attempt was 83.0% in Group NPA compared with 47.3% in Group O [P < 0.001; absolute risk reduction (ARR) = 35.7%, 95% confidence interval (CI) = 19.1–52.4%; relative risk reduction (RRR) = 67.8%] and success rate of NGI in accumulative attempts (two attempts maximum) was 88.7% in Group NPA compared with 63.6% in Group O (P = 0.002; ARR = 25.0%, 95% CI = 9.7–40.4%; RRR = 68.9%). Duration for NGI successful at the first attempt in Group NPA was significantly longer than that in Group O (56.3 vs. 27.1 s; P < 0.001; Mean difference = 29.2 s, 95% CI = 20.0–38.4 s). Neither bleeding incidence nor hemodynamic response is significantly different between the two study groups. Conclusions The study indicates a preinstalled NPA in the right nasal passageway facilitates NGI in anesthetized and intubated patients as an initial NGI method and as a rescuing method for patients undergoing two unsuccessful initial attempts of NGI without a preinstalled NPA. However, the NPA method proved to take more time than the routine method for NGI successful at the first attempt. Trial registration: The study was conducted after receiving approval from Institutional Review Board of Chang Gung Memorial Hospital, Linkou branch, Taiwan (registration number 201800138A3; April 11, 2018), and the clinicaltrials.gov (NCT03697642; Principal Investigator: Ting-Yang Huang; Date of registration: October 4, 2018; https://www.clinicaltrials.gov/NCT03697642).

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Comparison of early versus standard timing for silicone stent removal following External Dacrocystorhinostomy under local anaesthesia

Nepalese Journal of Ophthalmology ◽

10.3126/nepjoph.v11i1.25413 ◽

2019 ◽

Vol 11 (1) ◽

pp. 24-28

Author(s):

Ben Limbu ◽

Hannah S Lyons ◽

Mohan Krishna Shrestha ◽

Geoffrey C Tabin ◽

Rohit Saiju

Keyword(s):

Success Rate ◽

Financial Burden ◽

Controlled Trial ◽

Nasolacrimal Duct ◽

Complication Rates ◽

Tube Removal ◽

Significant Difference ◽

Silicone Stent ◽

Group A ◽

Group B

Introduction: The first line treatment for nasolacrimal duct obstruction (NLDO) is external dacrocystorhinostomy (DCR). Following DCR, patients are required to return to Tilganga Institute of Ophthalmology (TIO) six weeks postoperatively for the removal of a silicone stent. As the majority of patients travel large distances at significant cost to reach TIO, most often patients remain within Kathmandu during this six weeks interval. This places a large financial burden on patients. Methods: A randomized controlled trial was designed to compare patient outcomes after early (two weeks postoperatively) versus standard (six weeks postoperatively) removal of silicone stents. 50 selected patients were randomized into two equal groups. Results: At the time of publication, 31 patients (14 in group A and 17 in group B) had completed three months follow up. A success rate of 92.9% was noted in Group A and a success rate of 94.1% observed in group B. No significant difference was found between the two groups for success rate and rate of complications. Conclusion: Early tube removal post DCR appears to cause no significant difference in outcome or complication rates compared to standard tube removal.

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Randomized Controlled Trial of Pulpotomy in Primary Molars using MTA and Formocresol Compared to 3Mixtatin: A Novel Biomaterial

Journal of Clinical Pediatric Dentistry ◽

10.17796/1053-4625-42.5.7 ◽

2018 ◽

Vol 42 (5) ◽

pp. 361-366 ◽

Cited By ~ 1

Author(s):

Zahra Jamali ◽

Vajiheh Alavi ◽

Ebrahim Najafpour ◽

Naser Asl Aminabadi ◽

Sajjad Shirazi

Keyword(s):

Success Rate ◽

Primary Teeth ◽

Root Resorption ◽

Controlled Trial ◽

Sinus Tract ◽

Primary Molars ◽

Periapical Lesion ◽

External Root Resorption ◽

Significant Difference

Objective: This study was conducted to compare the efficacy of 3Mixtatin (a combination of simvastatin and 3Mix antibiotic) with MTA and Formocresol for the pulpotomy of primary molars. Study design: 114 children aged 3–6 years old with 150 primary molars were randomly allocated to three groups. MTA, Formocresol or 3Mixtatin were used for Pulpotomies. Hard setting zinc oxide eugenol was used to cover these materials. The teeth were restored with amalgam. Blinded radiographic and clinical examinations were conducted at 6, 12 and 24 months after treatment for the presence of pain, tenderness to palpation and percussion, sinus tract, swelling, presence of internal or external root resorption, inter-radicular radiolucency, and periapical lesion. Results: 122 teeth were available for 24-month follow-up study. The overall success rate was 78.9% for FC, 90.5% for 3Mixtatin and 88.1% for MTA group. There was no significant difference in overall success rate among the groups after 24-month follow-up (X2=2.43, df = 2, P =0.27). Conclusion: Our findings demonstrated remarkable results of 3Mixtatin in pulpotomy of primary teeth at the 24-month follow-up. Therefore, 3Mixtatin may be considered as an effective material in pulpotomy of primary teeth because of its successful results.

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Efficacy of Electro-Acupuncture in Chronic Plantar Fasciitis: A Randomized Controlled Trial

The American Journal of Chinese Medicine ◽

10.1142/s0192415x12500863 ◽

2012 ◽

Vol 40 (06) ◽

pp. 1167-1176 ◽

Cited By ~ 19

Author(s):

Wipoo Kumnerddee ◽

Nitsara Pattapong

Keyword(s):

Success Rate ◽

Plantar Fasciitis ◽

Controlled Trial ◽

Acupuncture Group ◽

Control Group ◽

Success Rates ◽

End Of Treatment ◽

Foot Function ◽

And Control

The aim of the study was to investigate the efficacy of electro-acupuncture coupled with conventional treatments and compare it with the efficacy of conventional treatments alone in patients with chronic plantar fasciitis. Thirty patients with chronic refractory plantar fasciitis were randomly assigned to two groups. Subjects in the control group received five weeks of conventional treatments, including stretching exercise, shoe modification and rescue analgesics. Subjects in the acupuncture group received the same treatments plus ten sessions of electro-acupuncture twice weekly. Endpoints included a success rate determined by a minimum of a 50% decrease in Visual Analog Scale (VAS) and Foot Function Index (FFI). At the end of treatment, VAS decreased significantly from 6.00 ± 1.69 to 1.89 ± 1.59 and from 6.27 ± 2.34 to 5.40 ± 2.26 in the acupuncture and control groups, respectively. FFI decreased significantly only in the acupuncture group (p < 0.05). Subjects in the acupuncture group obtained higher success rates than those in control group (80% and 13.3%, respectively). FFI in the acupuncture group was better than those in the control group (p < 0.001). At the sixth week follow-up, subjects in the acupuncture group showed a better FFI and success rate for pain during the day than those in the control group (p < 0.05). Electro-acupuncture coupled with conventional treatments provided a success rate of 80% in chronic planar fasciitis which was more effective than conventional treatments alone. The effects lasted for at least six weeks.

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Does the parental stretching programs improve metatarsus adductus in newborns?

Journal of Orthopaedic Surgery ◽

10.1177/2309499017690320 ◽

2017 ◽

Vol 25 (1) ◽

pp. 230949901769032 ◽

Cited By ~ 2

Author(s):

Perajit Eamsobhana ◽

Karn Rojjananukulpong ◽

Thanase Ariyawatkul ◽

Chatupon Chotigavanichaya ◽

Kamolporn Kaewpornsawan

Keyword(s):

Success Rate ◽

Controlled Trial ◽

Observation Group ◽

Mild Degree ◽

Significant Difference ◽

Pediatric Foot ◽

Lower Success Rate ◽

Metatarsus Adductus ◽

The Difference ◽

Severe Degree

Background: Metatarsus adductus (MA) is a common pediatric foot deformity. Current recommendations suggest observation until 4–6 months, then casting if the deformity persists. Based on our review of the literatures, no randomized controlled trial has been conducted to study the effectiveness of parental stretching in the correction of MA in newborn. Material and methods: Ninety-four newborn feet that were diagnosed as MA by clinical examination were enrolled. Feet were randomized into two groups: observation group and stretching group. Outcome measurements were performed to compare success rate between groups. Results: According to Pearson’s χ2 test, there were no statistically significant differences between groups with regard to the overall success of the parental stretching program ( p = 0.191). There was also no significant difference between groups for mild degree or moderate-to-severe degree ( p = 0.134, p = 0.274, respectively). A more rapid success rate was observed in the stretching group at the first month follow-up, but rate of improvement then decreased. The stretching group tended to have a lower success rate compared to the observation group in moderate-to-severe feet, but the difference was not statistically significant. Conclusions: Parental stretching program found no benefit over observation group in this study. Parental stretching program should not be applied for newborn babies with moderate-to-severe MA as the result from the study appeared to have lower success rate compared to observation group. Observe until 4–6 months, then corrective casting for the persisting deformity is recommended.

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Role of silicone stenting in endoscopic dacryocystorhinostomy

International Journal of Otorhinolaryngology and Head and Neck Surgery ◽

10.18203/issn.2454-5929.ijohns20200136 ◽

2020 ◽

Vol 6 (2) ◽

pp. 248

Author(s):

Abdussalam M. Jahan ◽

Yousef M. Eldanfur ◽

Abdulhakim B. Ghuzi

Keyword(s):

Success Rate ◽

Medical Center ◽

Nasolacrimal Duct ◽

Nasolacrimal Duct Obstruction ◽

P Value ◽

Success Rates ◽

Duct Obstruction ◽

Significant Difference ◽

Silicone Stent ◽

Endoscopic Dcr

Background: Dacryocystorhinostomy (DCR) is a surgical procedure performed to relief nasolacrimal duct obstruction, which involves the creation of ostium at the lacrimal bone to form a shunt in the nasolacrimal pathway. Closure of the rhinostomy opening was considered a major factor for surgical failure. Use of silicone stent in endoscopic DCR to improve the success rate of the operation have been tried by many surgeons. In this study we assess the success rates of endoscopic DCR with and without silicone stents.Methods: Prospective study includes 30 patients were operated in the Department of ENT, Misrata Medical Center, from April 2017 to March 2018. They underwent endonasal endoscopic DCR for primary acquired nasolacrimal duct obstruction. These patients were randomly divided in two groups: A and B with 15 patients in each group. The group A patients underwent endoscopic DCR with silicone stent and group B patients underwent endoscopic DCR without stent. The results were statistically analyzed by chi-square test. Results: 30 patients were included in this study, their age ranged from 17 to 60 years, complaining of epiphora, 24 (80%) were females and 6 (20%) were males. The success rate was higher in patients with silicone stent (93.33%) as compared to patients without silicone stent (86.67%) but this difference in the results is not statistically significant (As p value is 0.542 which is >0.05).Conclusions: Endoscopic DCR is safe, successful procedure for treatment of nasolacrimal duct obstruction and there was no significant difference in the success rates of performing endonasal DCR with silicone or without silicone stents.

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