PMID- 11203648
OWN - NLM
STAT- MEDLINE
DCOM- 20010222
LR  - 20041117
IS  - 0893-2174 (Print)
IS  - 0893-2174 (Linking)
VI  - 13
IP  - 4
DP  - 2000 Jul-Aug
TI  - Changes in the provision of implant-supported prostheses at the Academic Centre 
      for Dentistry Amsterdam (ACTA) from 1989 to 1995.
PG  - 316-20
AB  - PURPOSE: Over the last decade, oral implantology has become a major treatment 
      modality to aid the restoration of reduced dentitions. The present study 
      monitored and quantified changes within a 5-year interval (1989-1991 [denoted as 
      1990*] to 1995) in the provision of different types of implant-supported 
      superstructures and characteristics of recipient patients at the Academic Centre 
      for Dentistry Amsterdam (ACTA). MATERIALS AND METHODS: All patients who received 
      oral implants in 1990* and in 1995 were selected, and their files (95 and 105, 
      respectively) were consulted. Data of interest were retrieved retrospectively, 
      compared, and statistically analyzed using Chi-squared tests. RESULTS: A number 
      of statistically significant differences was apparent between these 2 periods. By 
      1995 there was a threefold increase in both the number of patients and the number 
      of implants placed per year. The patient group of < or = 40 years of age had 
      significantly increased, from 7% to 23%. Also, in 1995 more maxillae were 
      implanted than in 1990* (44% vs 26%). Whereas the majority of implanted patients 
      was edentulous in 1990* (64%), the majority in 1995 was partially edentulous 
      (60%). By 1995, the new technique of guided bone regeneration (GBR) using 
      membranes was evidenced (no GBR in 1990* vs 33% of all patients in 1995 receiving 
      some form of local GBR therapy). With respect to the type of superstructures, 
      there was a strong increase in the number of single-tooth replacements (from 4% 
      to 23%). In the edentulous group, the majority of superstructures in 1990 was 
      fixed prostheses (64%), whereas in 1995 the majority was overdentures (71%). 
      CONCLUSION: Major changes in oral implantology treatments were noticed between 
      the 1990* and 1995 periods at ACTA. There is a trend toward implanting younger 
      patients for partial implant-supported reconstructions using more regenerative 
      procedures and with a more equal distribution in the maxilla and mandible.
FAU - Van der Zee, E
AU  - Van der Zee E
AD  - Oral Implantology Group, Department of Oral Function, Academic Centre for 
      Dentistry Amsterdam (ACTA), Louwesweg 1, 1068 EA Amsterdam, The Netherlands. 
      E.vd.Zee@acta.nl
FAU - Van Waas, M
AU  - Van Waas M
FAU - Broek, M
AU  - Broek M
FAU - Van der Mieden van Opmeer, R
AU  - Van der Mieden van Opmeer R
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Int J Prosthodont
JT  - The International journal of prosthodontics
JID - 8900938
RN  - 0 (Dental Implants)
MH  - Academic Medical Centers/statistics & numerical data
MH  - Adult
MH  - Age Distribution
MH  - Alveolar Ridge Augmentation/statistics & numerical data
MH  - Chi-Square Distribution
MH  - Dental Implants/*statistics & numerical data
MH  - Dental Implants, Single-Tooth/statistics & numerical data
MH  - Dental Prosthesis Design/*statistics & numerical data
MH  - Dental Prosthesis, Implant-Supported/*statistics & numerical data
MH  - Denture, Partial/statistics & numerical data
MH  - Female
MH  - Guided Tissue Regeneration, Periodontal/statistics & numerical data
MH  - Humans
MH  - Jaw, Edentulous, Partially/*epidemiology/rehabilitation
MH  - Male
MH  - Mandible
MH  - Maxilla
MH  - Middle Aged
MH  - Netherlands/epidemiology
MH  - Retrospective Studies
MH  - Sex Distribution
EDAT- 2001/02/24 12:00
MHDA- 2001/03/03 10:01
CRDT- 2001/02/24 12:00
PHST- 2001/02/24 12:00 [pubmed]
PHST- 2001/03/03 10:01 [medline]
PHST- 2001/02/24 12:00 [entrez]
PST - ppublish
SO  - Int J Prosthodont. 2000 Jul-Aug;13(4):316-20.