Method of dental treatment - Patent Review 5865505

Claims

What is claimed is:

1. A method of treating a dental patient, comprising:

providing: a pivotable chair with:

a reclinable back; and

a headrest connected to said reclinable back, said headrest including:

a bracket for attaching said headrest to said reclinable back; and

a pad connected to said bracket said pad including an internal perimeter that defines a hole through which a prone patient's nose and mouth can protrude so that said prone patient's oral cavity can be reached from below said prone patient;

locating said dental patient on said pivotable chair in a prone position so that said dental patient's nose and mouth protrude through said hole;

pivoting said pivotable chair; and

reaching into said dental patient's oral cavity from below said dental patient, wherein providing said pivotable chair includes providing said internal perimeter with:

a first section that varies substantially according to

(x).sup.2 +(y).sup.2 =r.sup.2

a second section connected to said first section, said second section varying substantially according to y=mx+b;

a third section connected to said second section, said third section varying substantially according to

(x).sup.2 =-4c(y+k);

and

a fourth section connected to said third section, said fourth section varying substantially according to y=-m(x-h)+b.

2. The method of claim 1, wherein providing said pivotable chair includes providing said pivotable chair with a base portion connected to said reclinable back and an elevating mechanism connected to said base portion, and, further comprising elevating said pivotable chair.

3. The method of claim 1, wherein providing said pivotable chair includes providing said pivotable chair with a base portion connected to said reclinable back and a leg rest connected to said base portion, said leg rest being pivotable with respect to said base portion, and, further comprising, pivoting said leg rest.

4. The method of claim 1, wherein providing said pivotable chair includes providing said pivotable chair with a first armrest connected to said reclinable back and a second armrest connected to said reclinable back, said first armrest and said second armrest both being pivotable with respect to said reclinable back, and further comprising pivoting both said first armrest and said second armrest.

5. A dental chair for performing the method of claim 1.

6. A method of treating a dental patient, comprising:

providing: a pivotable chair with:

a reclinable back; and

a headrest connected to said reclinable back, said headrest including:

a bracket for attaching said headrest to said reclinable back; and

a pad connected to said bracket, said pad including an internal perimeter that defines a hole through which a prone patient's nose and mouth can protrude so that said prone patient's oral cavity can be reached from below said prone patient;

locating said dental patient on said pivotable chair in a prone position so that said dental patient's nose and mouth protrude through said hole;

pivoting said pivotable chair; and

reaching into said dental patient's oral cavity from below said dental patient wherein providing said pivotable chair includes providing said internal perimeter with:

a first section that varies substantially according to

(x).sup.2 +(y).sup.2 =r.sup.2

a second section connected to said first section, said second section varying substantially according to

(x).sup.2 +(y+k).sup.2 =(r').sup.2

a third section connected to said second section, said third section varying substantially according to y=b;

a fourth section connected to said third section, said fourth section varying substantially according to

(x+h).sup.2 +(y+k).sup.2 =(r").sup.2;

and

a fifth section connected to said fourth section, said fifth section varying substantially according to

(x+h).sup.2 +(y).sup.2 =(r'").sup.2.

7.