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ABSTRACT: 

Aesthetic Dentistry Today 2008 2 (1) 36-41 

One hundred consecutive Invisalign cases analysed 

P. V. Humber BDS LDS RCS DipMCS  

Abstract: One hundred consecutive Invisalign cases were examined to assess treatment outcome and patient experience. Active treatment took place between 2003 and 2006. Post treatment alignment of the teeth was assessed, along with the periodontal status and caries rate during and after treatment. The duration of active treatment was calculated, along with the clinical hours taken. Four patients dropped out during the study period. Six patients exhibited improved periodontal or gingival status, while four patients experienced temporary gingival bleeding and one patient exhibited increased periodontal pocketing. These findings are in line with previous research. No patients had new caries or demineralization during the treatment, although four patients had a restoration replaced. The possible causes of this are discussed and further research is to be instigated. The average treatment time was measured at 13.5 months as calculated from the first impression required by the Invisalign protocol to the date of the provision of the first retainer. 46 patients completed their treatment within 12 months. The average clinical hours used were approximately 8 hours in total. Six of the hundred cases had one tooth or more that failed to achieve the movements predicted to the satisfaction of both the patient and the clinician. The treatment of anterior open bite cases and the treatment of patients who request ‘designer smiles’ is discussed, along with the mechanism for transferring cases when patients move country. 

Correspondence: www.sohamdental.co.uk 

Full text available at Aesthetic Dentistry Today: www.aestheticdentistrytoday.co.uk  
 
 

ABSTRACT: 

Dentistry 13th April 2006 

Ortho and an English patient 

P V Humber BDS LDS RCS 

Abstract: The case is made for US style aligners over fixed appliances for the treatment of a teenage actress whose diet included regular consumption of carbonated fizzy drinks. She was prescribed an original treatment plan that included first molar extractions, twin blocks and fixed appliances, but ultimately she was treated instead with Invisalign and a treatment plan that involved no extractions. The case took eight months of active treatment compared to the original prediction of two to three years of traditional appliances. 

Full text available at: www.dentistry.co.uk/articles/articles_print.php?id=75 
 
 

ABSTRACT: 

Dentistry 9th November 2006 p22-23 

Treating relapsed orthodontic cases 

P V Humber BDS LDS RCS 

Abstract: The high relapse rate for traditional orthodontics is discussed along with the effect this failure has on the public’s perception of the dental profession. Treatment planning using Invisalign ClinCheck software is demonstrated along with clinical cases of patients who have been previously treated with fixed appliances and who were subsequently treated with Invisalign to correct the relapse and failed early treatment. 

www.dentistry.co.uk

ABSTRACT: 

Aesthetic Dentistry 2008 2 (3) 85-88 

A Snapshot of Invisalign 

P. V. Humber BDS LDS RCS DipMCS  

Abstract: 40 Invisalign cases were examined that finished consecutively to assess current treatment time spans. The Invisalign treatment protocols were altered significantly in 2007 and it is thought that treatment should consequently become faster, and as a result the figures for the sample as a whole were compared with those patients whose treatment commenced in 2007. The average treatment time of the whole sample was 12 months, this compares to 10.25 months for the sample of 24 who commenced in 2007. The mode value for the whole sample was 11.5 months, this compares to a mode of 10.5 months for the sample whose treatment commenced in 2007. The statistical validity of these figures is discussed along with the potential mechanisms that may affect time spans with these techniques, and how Invisalign compares to fixed appliances and other aligner systems. 


 

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