Publications by authors named "Lucarotti P"
This paper aims to discuss the concept of canine guidance in light of recent research with regard to time to extraction of the restored canine tooth, with crowns representing the worst performing restoration at 15 years (66% cumulative survival). Given that the upper canine tooth may be considered the 'cornerstone' of the arch, reasons for this poor performance are discussed by examination of the existing literature on canine guidance and other aspects relating to the preparation of an upper canine tooth for a crown. The authors question previous recommendations that canine teeth should be placed into canine guidance when restored with crowns, given that the previously-published data indicate that survival of upper canine teeth which have been crowned is worse than when they are restored with any other restoration.
View Article and Find Full Text PDFAim It is the aim of this paper to consider whether overall patient treatment history per se and what length of patient history, matters in predicting future treatment need.Methods This study used a data set (SN7024, available from UKDataService), consisting of treatment records for General Dental Services' (GDS) patients, this being obtained from all items of service payment records for patients treated in the GDS of England and Wales between 1990 and 2006. For the purpose of this study, the GDS dataset for patients attending in 2003 was restricted to adult patients (aged 18 or over on 31 December 1990; that is, year of birth earlier than 1973) who attended in both two-year periods 1991/2 and 2004/5.
View Article and Find Full Text PDFIntroduction: This paper defines key points from a ten million restoration dataset in order to compare and contrast the data from the previous nine papers, identifying common themes and/or differences in the factors affecting the survival of restored teeth to next intervention or extraction.
Aim: It is the aim of this paper to present data on the survival of restorations in teeth by analysis of the time to re-intervention on the restorations and time to extraction of the restored tooth, and to discuss key findings regarding this.
Methods: A data set was established, consisting of General Dental Services (GDS) patients, this being obtained from all records for adults (aged 18 or over at date of acceptance) in the GDS of England and Wales between 1990 and 2006.
Aim: It is the aim of this paper to present data on the survival of restorations in incisor teeth by analysis of the time to re-intervention on the restorations and time to extraction of the restored incisor tooth, and to discuss the factors which may influence this.
Methods: A data set was established, consisting of General Dental Services patients, this being obtained from all records for adults (aged 18 or over at date of acceptance) in the GDS of England and Wales between 1990 and 2006. The data consist of items obtained from the payment claims submitted by GDS dentists to the Dental Practice Board (DPB) in Eastbourne, Sussex, UK.
Aim: It is the aim of this paper to present data on the survival of restorations in canine teeth by analysis of the time to re-intervention on the restorations and time to extraction of the restored tooth, and to discuss the factors which may influence this.
Methods: A data set was established, consisting of General Dental Services (GDS) patients, this being obtained from all records for adults (aged 18 or over at date of acceptance) in the GDS of England and Wales between 1990 and 2006. The data consist of items obtained from the payment claims submitted by GDS dentists to the Dental Practice Board (DPB) in Eastbourne, Sussex, UK.
Aim: It is the aim of this paper to consider the factors associated with a patient's continuing attendance at a particular dentist's surgery.
Methods: A data set was established consisting of General Dental Services' (GDS) patients whose birthdays were included within a set of randomly selected dates, 20 in each possible year of birth. The data set was restricted to those patients aged 18 or older in 2003 who attended only one dentist in only one postcode area in 2003, and who also attended only one dentist in the same postcode area in 2005, and where the dentist attended in 2003 was also practising in the same postcode area in 2005.
Aim: To consider the survival of restorations in root filled and non-root filled teeth.
Methods: A data set was established consisting of patients, 18 years or older. For each patient on the database with a tooth restored with a direct or indirect restoration with or without a root filling, the subsequent history of intervention on that tooth was consulted, and the next date of intervention, if any could be found in the data set, was obtained.
Aim: It is the aim of this paper to consider the factors associated with the need for re-intervention on a conventional or resin-retained bridge, excluding recementation.
Methods: A data set was established consisting of patients, 18 years or older, whose birthdays were included within a set of randomly selected dates, one of which was chosen in each possible year of birth and whose restoration records contained the placement of one or more indirect restorations on courses of treatment with last date on the claim form after 31st December 1990, and with date of acceptance after September 1990 and before January 2002. For each patient treated with a bridge, the subsequent history of intervention on each tooth used as a bridge abutment was consulted, and the next date of intervention, if any could be found in the extended data set, was obtained.
Aim: It is the aim of this paper to consider the treatment instituted when re-intervention is deemed necessary on a tooth which has previously been crowned.
Methods: A detailed sample of treatment records of patients has been established at the NHS Business Services Authority (Dental Services Division), consisting of records containing indirectly placed restorations for patients of age 18 years or older from January 1991. For each tooth treated with a crown, the subsequent history of intervention on that tooth was recorded.
Aim It is the aim of this paper to consider the factors associated with the need for re-intervention on direct-placement restorations placed within the general dental services of England and Wales.Methods A large age-stratified sample of adult patients and their dental intervention were tracked over 11 years to December 2001. For each tooth treated with a direct restoration the subsequent history of intervention on that tooth was consulted, and the next date of intervention, if any could be found in the extended data set, was obtained.
View Article and Find Full Text PDFAim: The aim of this study is to report the subsequent treatment provided, over the 11 years' data available, when a re-intervention was considered clinically necessary on a glass ionomer (GI) restoration.
Methods: A detailed sample of treatment records of patients has been established at the Dental Practice Division of the NHS Business Services Authority, consisting of records containing directly placed restorations for adult patients from January 1991. This database contains the records of over half a million restorations.
Aim: This paper describes the database used to assess the survival of indirect restorations and presents general data on survival of these restorations.
Methods: Data, based on the complete attendance and treatment history, over the 11 years from 1991 to 2001, of a statistically representative sample of 23,165 General Dental Services' (GDS) patients in England and Wales, all of whom received at least one indirect restoration during the observation period, have been analysed. The patients on the database received a total of 36,397 courses of treatment, and there were 52,481 indirect restorations placed.
Aim: It is the aim of this paper to consider the factors associated with the need for re-intervention on teeth restored with porcelain veneers.
Methods: A data set was established consisting of adult patients (18 years or older) whose restoration records contained the placement of one or more porcelain laminate veneers. For each tooth treated with a porcelain veneer, the subsequent history of intervention on that tooth was consulted, and the next date of intervention, if any could be found in the extended data set, was obtained.
Aim: It is the aim of this paper to consider the factors associated with the need for re-intervention on a crown, and the times to re-intervention.
Methods: A data set was established consisting of patients, 18 years or older, whose birthdays were included within a set of a randomly selected dates, one of which was chosen in each possible year of birth and whose restoration records contained the placement of one or more indirect restorations on courses of treatment with last date on the claim form after 31st December 1990, and with date of acceptance after September 1990 and before January 2002. For each tooth treated with a crown, the subsequent history of intervention on that tooth was consulted, and the next date of intervention, if any could be found in the extended data set, was obtained.
Aim: To consider the survival of root canal treatment provided within the General Dental Services in England and Wales, with failure being defined as re-treating of a root canal, apical surgery or extraction.
Methods: A data set was established consisting of patients, 18 years or older, whose birthdays were included within a set of randomly selected dates and whose restoration records contained the placement of one or more direct restorations or crowns in courses of treatment between September 1990 and January 2002. The history of each root canal-treated tooth was consulted, and the next date for an intervention on the root canal of the tooth, defined as a re-treatment, apical surgery or extraction, was obtained.
Aim: It is the aim of this paper to investigate the survival of direct-placement restorations provided within the General Dental Services in England and Wales, in relation to the dentist factors which may affect this.
Methods: For this work, survival of a restoration was considered to be the time between the date of completion of the course of treatment in which it was placed and the date of acceptance of the course of treatment when the next tooth-specific treatment was carried out on the same tooth. A modified version of Kaplan-Meier statistical methodology was used to plot survival curves for restorations placed by different subgroups of dentists.
Aim: It is the aim of this paper to consider the dental factors associated with the need for re-intervention on a restoration, such as the tooth position, size of cavity, and restoration material.
Methods: Patients whose data were included in this study were those whose birthdays were included within a set of randomly selected dates, one of which was chosen in each possible year of birth. The restoration records consisted of all those records containing directly placed restorations which related to courses of treatment of patients 18 years or older with last date on the claim form after 31st December 1990, and with date of acceptance after September 1990 and before January 2002.
Aim: It is aim of this paper to investigate the outcome of direct-placement restorations provided within the General Dental Services in England and Wales, in relation to the factors related to time and place of restoration placement.
Methods: A modified version of Kaplan-Meier statistical methodology was used to plot survival curves for restorations placed at different times and places, within the population of patients for whom data were available.
Results: The results indicated that overall, restoration survival time to re-intervention has declined over the last decade, but that most of the decline can be accounted for by the change in the relative numbers of amalgam and other direct restorations.