Calculi (Calculus)

01/01/1996 - "Results showed that the two commercial dentifrices were equally effective in reducing calculus extent between prophylaxes. "
01/01/2008 - "A clinical investigation of the efficacy of two dentifrices for the reduction of supragingival calculus formation."
01/01/2000 - "A calculus clinical study comparing the efficacy of two commercially available dentifrices."
12/01/1995 - "A twelve-week independent and double-blind clinical study was conducted on a sample of 143 calculus forming adult male and female subjects--with the average age of 39.11 years--to compare directly the anticalculus efficacy of three commercially-available dentifrices, as compared to a placebo dentifrice. "
08/01/1995 - "A 12-week independent and double-blind clinical study was conducted on a population of calculus-forming adult male and female subjects in Budapest, Hungary to directly compare the anticalculus efficacy of three commercially-available dentifrices, as compared to a placebo dentifrice. "

10/01/2018 - "Our study demonstrates DT is superior to KUB for identification of intrarenal calculi and could replace routine use of KUB or NCCT for detecting renal stones, even those composed of uric acid."
03/01/2001 - "Medical treatment is useful in the management of uric acid calculi. "
01/01/2005 - "This study was designed to evaluate the efficacy of local litholytic irrigation (LLI) in the treatment of ureteral uric acid calculi. "
02/06/2023 - "The aim of this study was to develop a CT-based radiomics and clinical variable diagnostic model for the preoperative prediction of uric acid calculi. "
01/01/2018 - "We used the DECT in this project to study its accuracy in non-invasive in vivo differentiation of uric acid (UA) calculi from non-UA calculi using the 3rd generation dual-source computed tomography (CT) scanner. "

04/01/2009 - "When comparing measurement errors between stones of different composition in vitro, the error for calcium oxalate calculi was significantly different from the gold standard for all methods except bone window settings with magnification. "
03/11/2013 - "The objective of this study is to determine in a case series (four patients) how calcified deposits in renal papillae are associated with the development of calcium oxalate monohydrate (COM) papillary calculi. "
08/15/2007 - "The number of calcium oxalate-containing calculi in the upper portion of the urinary tract increased significantly during the study period. "
09/01/1993 - "Studies on structure of calcium oxalate monohydrate renal papillary calculi. "
01/01/1993 - "In this paper a thorough study on the composition and structure of calcium oxalate monohydrate (COM) papillary calculi is presented. "

07/01/2010 - "Treatment with tamsulosin after ESWL appears to be effective in assisting stone clearance in patients with renal and ureteric calculi. "
12/01/2008 - "To study the effects of tamsulosin on ureteric contractions and its effects on the basal tone of human ureteric specimens, as clinical trials with tamsulosin have shown promising results in the spontaneous expulsion of lower ureteric calculus, but the mechanism of action of tamsulosin in the expulsion of ureteric calculus has not been elucidated in in-vitro studies on human ureters. "
07/01/2010 - "To make a definite clinical recommendation to use tamsulosin after ESWL for renal and ureteric calculi, a high quality confirmatory trial is warranted."
10/01/2023 - "In the tamsulosin group, out of 40 patients, 28 expelled the calculus. "
11/28/2017 - "All patients with radiologically confirmed uncomplicated ureteric calculi treated with MET using tamsulosin over a period of 6 months in the outpatient setting were followed up. "

04/01/2002 - "It is concluded that the D17 is significantly more effective in reducing both the rate of calculus and stain formation than the Sonicare toothbrush."
01/01/2010 - "However, factors in the oral environment such as calculus, hypocalcification, and stain could lead to false-positive results. "
04/01/2002 - "To compare the safety and efficacy with respect to the control of calculus and stain of two power toothbrushes. "
11/01/2018 - "This study indicates that wavelengths beyond 1400 nm are advantageous for imaging calculus and caries lesions on root surfaces due to the high contrast and lack of interference from stain."
09/01/2010 - "Intergroup comparisons showed statistically higher (p<0.05) stain intensity and extent index as well as calculus formation over the study in test surfaces as compared to control surfaces. "

06/01/1989 - "The mouthrinse containing only soluble pyrophosphate did not provide a statistically significant reduction in calculus deposits, as compared to the placebo mouthrinse."
01/01/2009 - "Prevention of lingual calculus formation with daily use of 6% H2O2/2% pyrophosphate whitening strips."
12/01/2001 - "The pyrophosphate content was dependent on the calculi composition. "
01/01/1998 - "The final results demonstrated that the pyrophosphate floss significantly inhibited calculus formation between teeth (mesial-distal scores) by 21%, and on labial surfaces by 37% relative to the placebo floss."
02/01/1993 - "A double-blind, cross-over study was carried out to assess the anti-calculus effectiveness of a pyrophosphate containing cleaning gel. "

01/01/2006 - "In this study, we reviewed cystine calculi cases in the west of Iran to determine their common presentations and response to different therapeutic modalities. "
01/01/2006 - "Pediatric cystine calculi in west of Iran: a study of 22 cases."
12/01/1992 - "To study the radiopacity of cystine calculi. "
06/01/1992 - "Ultrastructural studies have provided further insight into the structure and composition of cystine calculi. "
06/01/1992 - "[Cystine calculi: x-ray diffraction study. "

10/01/2005 - "Data have been analysed from: a 3-year caries clinical trial of six toothpastes conducted in Lanarkshire, Scotland that involved 3000 children, Study 1; a caries epidemiological study in the Isle of Lewis that involved 228 children, Study 2; a calculus formation study carried out at Port Sunlight using a wide age range of adults, Study 3. Baseline data taken from Study 1 show that caries prevalence is highly significantly lower in calculus-prone than in calculus-free subjects (P < 0.0001). "
11/01/1997 - "They were stratified by sex, examiner, and presence of calculus and caries, and were allocated at random to one of the four toothpastes under study. "
06/01/1994 - "They were stratified by sex, examiner, presence of calculus and caries, and allocated at random to one of the six toothpastes under study. "
02/01/1991 - "With the use of modern methodology to evaluate toothpaste formulations before clinical trials, many new products containing anti-calculus and other agents will probably become available in the coming years."
01/01/2022 - "Evaluations were performed before and after scaling and polishing procedures done at 3 months in order to evaluate the toothpaste's ability to remove calculus and to prevent calculus formation. "

06/01/2014 - "PCNL is considered to be the gold-standard approach to treating struvite calculi, but adjuncts might be used when deemed necessary. "
01/01/1996 - "Primary porosity, which can facilitate interaction between the calculus and changing urine composition, may explain the efficacy of dietary or medicinal manipulations to promote the dissolution of struvite-containing uroliths from this species."
04/01/2017 - "Previous studies suggested that patients with pure struvite calculi rarely have underlying metabolic abnormalities. "
08/01/2001 - "Further study is required to assess the in vivo effect of this procedure for treating and preventing upper tract struvite calculi."
11/29/2023 - "He was diagnosed to have a displaced SPC with a giant vesico-urethral calculus (struvite), not reported in literature so far. "

03/01/1989 - "While epidemiologic and laboratory studies provide only equivocal support for a synergistic relationship, several clinical trials with allopurinol have demonstrated a reduction in calculus recurrence. "
11/27/1986 - "After the study, the placebo group had 63.4 percent fewer calculi (P less than 0.001), whereas the allopurinol group had 81.2 percent fewer calculi (P less than 0.001). "
04/19/2020 - "In the dissolution effect of radiolucent calculi, F80 had the best effect, followed by F40 and then allopurinol (P<0.05). "
04/14/2000 - "Histopathological observations showed that allopurinol induced calculus formation in the collecting tubules and papillary duct. "
07/01/1993 - "X-ray diffraction and high pressure liquid chromatography were performed on all calculi from dogs known to have been given allopurinol (n = 19).(ABSTRACT TRUNCATED AT 250 WORDS)"

01/01/2010 - "RIRS is the best option for managing extracorporeal shockwave lithotripsy failed and post PCNL residual calculus. "
06/01/2004 - "Recurrence of calculi in the treated gland was observed during a median follow-up period of 57 months in four patients with complete ultrasonographic clearance of the stone occurring 10 to 58 months after lithotripsy. "
03/01/2015 - "The suggested method of contact ureteral lithotripsy is safe and provides several advantages over traditional contact ureteral lithotripsy in a fluid medium, such as: physiologic validity, absence of calculus hypermobility (increased mobility), improved visualization during surgery and high cost effectiveness."
08/01/1999 - "To investigate the safety and efficacy of electrokinetic lithotripsy (EKL), a ballistic lithotripter which uses high-energy magnetic fields to propel an impactor to fragment calculi. "
04/01/1992 - "Lithotripsy has proved an effective treatment for distal ureteric calculi and has rendered 69% of patients stone free with minimal morbidity. "

08/01/2014 - "It was concluded that the addition of a visual component to calculus detection via the Perioscope™ was most helpful in the re-evaluation phase of periodontal therapy."
06/01/2007 - "mPCNL is safe and effective for managing calculi in transplanted kidneys, and it can be the initial therapy for most cases of UUT stones in transplanted kidneys, except for simple and small stones in the middle or lower calyx."
05/01/1996 - "Complete clearance of calculi was observed in more than 50% of the cases after 6 months, and reached 98% after 22 months of therapy in both groups. "
11/28/2017 - "Although medical expulsive therapy (MET) is shown to be effective for ureteric calculi, the optimum duration and the stone size suitable for MET are not well established yet. "
05/01/2014 - "Rigid and flexible uretero(reno)scopy (URS) are safe and effective methods in interventional calculus therapy. "

06/01/1995 - "The Ho:YAG laser was effective for fragmenting all types of calculi. "
03/01/2008 - "Flexible ureteroscopy using holmium laser is a safe and effective option for the treatment of upper urinary tract calculi. "
07/01/2007 - "The use of PTHC with holmium:YAG laser ablation is safe and efficacious, but requires prolonged biliary access and often multiple procedures to ensure clearance of all calculi."
07/01/2011 - "Efficacy of flexible fibreoptic ureteroscopy and Holmium laser in retrograde intrarenal surgery for calyceal calculi."
09/01/2007 - "To compare the efficacy of Holmium: YAG laser and pneumatic lithoclast in treating ureteric calculi. "

01/01/2006 - "Complete clearance of calculi was achieved by laparoscopic assisted percutaneous nephrolithotomy (PCNL), by different but related techniques. "
02/01/2005 - "Complete clearance of calculi was achieved by laparoscopy-assisted PCNL (percutaneous nephrolithotomy). "
09/01/2013 - "Current evidence suggests that laparoscopic pyelolithotomy and percutaneous nephrolithotomy are effective and safe for large renal pelvic calculi but laparoscopic pyelolithotomy seems to be more advantageous. "
10/21/2019 - "To share our multicenter experience using a safe and effective method for treating large proximal ure-teral calculus by simultaneous supine percutaneous nephrolithotomy (sPCNL) and retrograde ureterolithotripsy (URSL) in the Galdakao-modified supine Valdivia position. "
09/01/2014 - "Percutaneous nephrolithotomy is generally considered a safe option for the management of large complex or infectious upper urinary tract calculi. "

11/01/1991 - "Fragmentation efficiency was significantly improved requiring many fewer laser pulses to fragment calculi of similar size and composition, and decreasing the need for auxiliary methods to complete stone fragmentation. "
10/01/2017 - "Calculus-positive root surfaces exhibited significantly greater DIAGNOdent laser autofluorescence than calculus-free tooth roots, even with the laser probe tip directed parallel to root surfaces. "
10/01/2017 - "However, calculus-positive roots, particularly with calculus in markedly-raised ledges, yielded significantly greater mean DIAGNOdent laser autofluorescence intensity scores than calculus-free surfaces, regardless of probe tip orientation. "
09/01/2015 - "In MSK patients with repeated recurrences of symptomatic stones, ureteroscopic laser papillotomy could be a safe and effective treatment option for radiographically visible intraductal papillary calculi."
12/01/2019 - "Improved detection of subgingival calculus by laser fluorescence over differential reflectometry."